In increasing numbers microform publishers are engaged in reproducing valuable and extensive collections of books, documents and manuscripts that would otherwise be impossible for most libraries to acquire due to their scarcity and cost. The availability of these collections and the difficulties encountered when using them prompted the development…

The sources of supply for every important microfilm service and piece of equipment are listed in this volume along with a "keyword index" that simplifies reference work. Readers can find who makes what (or offers what service), where they are, whom to contact, and what the product will be likely to cost. Also included are an industrywide name and…

This paper was prepared to provide a frame of reference to the role of microfilm within the information retrieval world and to provide an opportunity for evaluation of the use of microforms for active retrieval applications. The paper discusses the principles of information retrieval, considers subject and classification indexing, and describes…

A number of questions are raised and discussed with reference to displaying for the library client the relevant facts about a work in microform in such a way that the client knows exactly where to find it. The following questions are addressed: 1) whether to use a subject-classification system, a form-code/accession-numbering system, or some…