Cita APA (7a ed.)

Sigel, I. E., & Laosa, L. M. (1983). Changing families. Plenum Pr.

Cita Chicago Style (17a ed.)

Sigel, Irving E., y Luis M. Laosa. Changing Families. New York, N. Y. [u.a.]: Plenum Pr, 1983.

Cita MLA (9a ed.)

Sigel, Irving E., y Luis M. Laosa. Changing Families. Plenum Pr, 1983.