APA (7th ed.) Citation

Smith, T. L., & Zopf, P. E. (1976). Demography: Principles and methods. Alfred Publishing.

Chicago Style (17th ed.) Citation

Smith, T. Lynn, and Paul E. Zopf. Demography: Principles and Methods. Port Washington, N.Y.: Alfred Publishing, 1976.

MLA (9th ed.) Citation

Smith, T. Lynn, and Paul E. Zopf. Demography: Principles and Methods. Alfred Publishing, 1976.