194363 Rotman, B. (1977). Jean piaget: Psychologist of the Real. Hassocks, Sussex : Harvester Press.
Lua i Stíl Chicago (17ú heag.)194363 Rotman, Brian. Jean Piaget: Psychologist of the Real. Hassocks, Sussex : Harvester Press, 1977.
Lua MLA (9ú heag.)194363 Rotman, Brian. Jean Piaget: Psychologist of the Real. Hassocks, Sussex : Harvester Press, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.