Westby, B. M., & Sittig, W. J. (1983). The card catalogs of the Library of Congress: A brief description by Barbara Westby and William J. Sittig (Rev.). Library of Congress.
Chicago Style (17th ed.) CitationWestby, Barbara M., and William J. Sittig. The Card Catalogs of the Library of Congress: A Brief Description by Barbara Westby and William J. Sittig. Rev. Washington: Library of Congress, 1983.
MLA (9th ed.) CitationWestby, Barbara M., and William J. Sittig. The Card Catalogs of the Library of Congress: A Brief Description by Barbara Westby and William J. Sittig. Rev. Library of Congress, 1983.
Warning: These citations may not always be 100% accurate.