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Chicago Manual of Style

Electronic Books (E-books) (Sec 14.161)

Ebook are cited the exact same way as their print counterparts, but have the addition of a "media marker" at the end of the citation, such as Kindle edition, PDF e-book, Microsoft Reader e-book, CD-ROM, etc.

Books consulted online are also cited the same way as their print counterparts, but have the DOI or URL (if publicly available) included at the end of the citation. If it's from one of the library's eBook databases, specify which one.

General Format 

Full Note: 

1. Author First Name/Initial Surname, Book Title: Subtitle of the Book (Place of Publication:
Publisher, Year), page #. Format/URL/DOI/Commercial Database.
 
Example: 
1. Elizabeth Hillman Waterston, Blitzkrieg and Jitterbugs: College Life in Wartime, 1939-1942 
(Montreal: McGill-Queen's University Press, 2012), 54. ProQuest Ebook Central. 
2. Eiichiro Azuma, Between Two Empires: Race, History, and Transnationalism in Japanese
America (New York: Oxford University Press, 2005), 72. DOI:10.1093/acprof:oso/9780195159400.001.0001.
3. John Douglas Belshaw, Canadian History: Post-Confederation, 2nd ed.(Victoria, BC: BCcampus,
2020), sec. 2.6. https://opentextbc.ca/postconfederation2e/
 
Subsequent Note: 
 4. Author Surname, Book Title, page #. 
 
Example:   
 5. Waterston, Blitzkrieg and Jitterbugs, 78.
   
Bibliography:
Author Surname, First Name or Initial. Book Title: Subtitle of the Book. Place of Publication:
Publisher, Year. Format/URL/DOI/Commercial Database.
 
Example:   
Azuma, Eiichiro. Between Two Empires: Race, History, and Transnationalism in Japanese
America. New York: Oxford University Press, 2005. DOI:10.1093/acprof:oso/9780195159400.001.0001.
 
Belshaw, John Douglas. Canadian History: Post-Confederation, 2nd ed. Victoria, BC: BCcampus,
2020. https://opentextbc.ca/postconfederation2e/
 
Waterston, Elizabeth Hillman. Blitzkrieg and Jitterbugs: College Life in Wartime, 1939-1942
Montreal: McGill-Queen's University Press, 2012. ProQuest. Ebook Central.

Freely Available Electronic Editions of Older Works (Sec. 14.162)

When possible, use scanned pages of original text to reflowable text (i.e., webpages) when citing sources so that page numbers are available.

General Format 

Full Note: 

1. Author First Name/Initial Surname, Book Title: Subtitle (Place of Publication:
Publisher, Year), page #. URL.
 
Example: 
1. Susanna Moodie, Roughing it in the Bush, or, Life in Canada (Toronto: Richard Bentley,
1852), 24-25https://archive.org/details/roughingitinbush01mood.
2. Thomas Hobbes, Leviathan, Or The Matter, Forme, & Power of a Common-wealth
Ecclesiastical and Civill ([London]: Andrew Crooke, 1651; Project Gutenberg, 2009),
https://www.gutenberg.org/ebooks/3207.  
 
Subsequent Note: 
 3. Author Surname, Book Title, page #. 
 
Example:   
 3. Moodie, Roughing it in the Bush, 78.
   
Bibliography:
Author Surname, First Name or Initial. Book Title: Subtitle. Place of Publication:
Publisher, Year. URL.
 
Example:   
​Hobbes, Thomas. Leviathan, Or The Matter, Forme, & Power of a Common-wealth 
Ecclesiastical and Civill. [London]: Andrew Crooke, 1651. https://www.gutenberg.org/ebooks/3207
 
Moodie, Susanna. Roughing it in the Bush, or, Life in Canada. Toronto: Richard Bentley, 1852.
https://archive.org/details/roughingitinbush01mood.