1. The beginnings of indexing and abstracting: Some notes toward a history of indexing in antiquity and the middle ages;Witty;The Indexer,1973
2. Abstracting concepts and methods;Borko,1975
3. Criteria for acceptable abstracts: A survey of abstractors' instructions;Borko;American Documentation,1963
4. ANSI Z39.14-1979 American National Standard for Writing Abstracts.
5. ISO 214-1976 (E) Documentation—Abstracts for publication and documentation.