Dyfyniad APA

Richardson, K. (2000). Developmental psychology: How nature and nurture interact. Houndmills: Macmillan.

Dyfyniad Arddull Chicago

Richardson, Keith. Developmental Psychology: How Nature and Nurture Interact. Houndmills: Macmillan, 2000.

Dyfyniad MLA

Richardson, Keith. Developmental Psychology: How Nature and Nurture Interact. Houndmills: Macmillan, 2000.

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