Παραπομπή APA

Thomas, R. M. (1990). Encyclopedia of Human Development and Education: Theory Research and Studies. Pergamon Press.

Παραπομπή Chicago Style

Thomas, R Murray. Encyclopedia of Human Development and Education: Theory Research and Studies. Oxford: Pergamon Press, 1990.

Παραπομπή MLA

Thomas, R Murray. Encyclopedia of Human Development and Education: Theory Research and Studies. Pergamon Press, 1990.