Cita APA (7a ed.)

Sigel, I. E., & Brody, G. H. (1990). Methods of family research: Biographies of research projects. Lawrence Erlbaum.

Cita Chicago Style (17a ed.)

Sigel, Irving E., y Gene H. Brody. Methods of Family Research: Biographies of Research Projects. Hillsdale, New Jersey [etc.]: Lawrence Erlbaum, 1990.

Cita MLA (9a ed.)

Sigel, Irving E., y Gene H. Brody. Methods of Family Research: Biographies of Research Projects. Lawrence Erlbaum, 1990.