APA (7th ed.) Citation

Keyfitz, N. (1980). Urban influence on farm family size. Arno Press.

Chicago Style (17th ed.) Citation

Keyfitz, Nathan. Urban Influence on Farm Family Size. New York: Arno Press, 1980.

MLA (9th ed.) Citation

Keyfitz, Nathan. Urban Influence on Farm Family Size. Arno Press, 1980.

Warning: These citations may not always be 100% accurate.