Lua APA (7ú heag.)

Hoffmann, L. (1988). Developmental psychology today (5th. ed.). Random House.

Lua i Stíl Chicago (17ú heag.)

Hoffmann, Lois. Developmental Psychology Today. 5th. ed. San Diego: Random House, 1988.

Lua MLA (9ú heag.)

Hoffmann, Lois. Developmental Psychology Today. 5th. ed. Random House, 1988.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.