Public Affairs Information Service, Picon, A., & Sloan, G. (1990). PAIS subject headings (2nd ed.). Public Affairs Information Service.
Chicago Style (17th ed.) CitationPublic Affairs Information Service, Alice Picon, and Gwen Sloan. PAIS Subject Headings. 2nd ed. [New York]: Public Affairs Information Service, 1990.
MLA (9th ed.) CitationPublic Affairs Information Service, et al. PAIS Subject Headings. 2nd ed. Public Affairs Information Service, 1990.
Warning: These citations may not always be 100% accurate.