APA (7th ed.) Citation

Sills, D. L. (1968). International encyclopedia of the social sciences. The Macmillan Company.

Chicago Style (17th ed.) Citation

Sills, David L. International Encyclopedia of the Social Sciences. Nueva York: The Macmillan Company, 1968.

MLA (9th ed.) Citation

Sills, David L. International Encyclopedia of the Social Sciences. The Macmillan Company, 1968.