APA (7th ed.) Citation

Petersen, W., & Petersen, R. (1985). Dictionary of demography: Biographies. Greenwood.

Chicago Style (17th ed.) Citation

Petersen, William, and Renee Petersen. Dictionary of Demography: Biographies. Westport (Connecticut) [etc.]: Greenwood, 1985.

MLA (9th ed.) Citation

Petersen, William, and Renee Petersen. Dictionary of Demography: Biographies. Greenwood, 1985.