Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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