When you are referencing work presented at conferences and meetings can be confusing. Treat these references case-by-case. There are three types of citations possible for referencing these works:
Though resembling the format of a book, additional information required includes meeting title, location, and dates.
Author 1; Author 2; etc. Title of Presentation. In Title of the Collected Work, Proceedings of the Name of the Meeting, Location of the Meeting, Date of Meeting; Editor 1, Editor 2, etc., Eds.; Publisher: Place of Publication, Year; Abstract Number, Pagination.
Garrone, R.; Ugliengo, P. In Structure and reactivity of Surfaces. Proceedings of the Eurpoean Conference, Trieste, Italy, Sep 13-20, 1988; Zecchina, A., Cost, G., Morterra, C. Eds.; Elsevier: Amsterdam, 1988.
Use CASSI to find proceedings and abstracts of meetings and conferences. CASSI indexes in a format as follows: Abstr. Pap.-AM. Chem. Soc., 1989, 198
CASSI provides the meeting number in ordinal form. You must convert this to an italic cardinal number and use it as the volume number.
Kaplan, L.J.; Selder, A. Books of Abstracts, 213th ACS National Meeting, San Francisco, CA, April 13-17, 1997; American Chemical Society: Washington, DC, 1997; CHED-824.
Author 1; Author 2; etc. Title of Presentation (if any). Presented at Conference Title, Place, Date; Paper Number.