The 1972 Microfilm Source Book has been designed to give sources of supply for important services and equipment related to microfilm. Events in the microfilm industry during 1971 are reviewed first, and a calendar is provided of major meetings and conferences held during 1972. The next section contains an index to products which lists them alphabetically by supplier under keywords. The listing includes the name of the supplier, the product identification or model number, and the general price range for the product. A brief list of custom equipment manufacturers and a guide to metrication precede an alphabetically arranged index to associations. Also included are a basic microfilm bibliography, a directory of trade names, a glossary of microfilm terms, an outline of 1971 microfilm stocks performance, a list of micropublishers, a COM bibliography, lists of COM service bureaus and services, a description of COM recorder characteristics, a directory of microfilm service bureaus, a guide to consultants, an index to sources, a list of storage centers, a brief employment agency index, and an advertiser's index. (Author/SH)