Dyfyniad APA

Casterline, J. B., Lee, R. D., & Foote, K. A. (1996). Fertility in the United States: New patterns, new theories. Population Council.

Dyfyniad Arddull Chicago

Casterline, John B., Ronald Demos Lee, and Karen A. Foote. Fertility in the United States: New Patterns, New Theories. New York: Population Council, 1996.

Dyfyniad MLA

Casterline, John B., et al. Fertility in the United States: New Patterns, New Theories. Population Council, 1996.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.