APA (7th ed.) Citation

Sills, D. (1968). International encylopaedia of soc.science Vol XIII. The Macmillan.

Chicago Style (17th ed.) Citation

Sills, David. International Encylopaedia of Soc.science Vol XIII. New York: The Macmillan, 1968.

MLA (9th ed.) Citation

Sills, David. International Encylopaedia of Soc.science Vol XIII. The Macmillan, 1968.