APA ציטוט

Upton, P., & Upton, D. (2011). Developmental psychology: Critical thinking in psychology.

Chicago Edition Citation

Upton, Penny, and Dominic Upton. Developmental Psychology: Critical Thinking in Psychology. Graet Britain, 2011.

ציטוט MLA

Upton, Penny, and Dominic Upton. Developmental Psychology: Critical Thinking in Psychology. 2011.