Dyfyniad APA

Ford, D. H., & Lerner, R. M. (1992). Developmental systems theory: An integrative approach. Sage.

Dyfyniad Arddull Chicago

Ford, Donald H., and Richard M. Lerner. Developmental Systems Theory: An Integrative Approach. London: Sage, 1992.

Dyfyniad MLA

Ford, Donald H., and Richard M. Lerner. Developmental Systems Theory: An Integrative Approach. Sage, 1992.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.