APA (7th ed.) Citation
American Academy of Political and Social Science. (1951). Cumulative index, 1946-1950, volumes 243-272: Sixtieth anniversary index. The Academy.
Chicago Style (17th ed.) Citation
American Academy of Political and Social Science. Cumulative Index, 1946-1950, Volumes 243-272: Sixtieth Anniversary Index. Philadelphia: The Academy, 1951.
MLA (9th ed.) Citation
American Academy of Political and Social Science. Cumulative Index, 1946-1950, Volumes 243-272: Sixtieth Anniversary Index. The Academy, 1951.
Warning: These citations may not always be 100% accurate.