APA (7e ed.) Bronvermelding

Ramos, E. C., & Sichermann, R. J. (1978). Introduction to human development. Textbook Development Committee, De La Salle University.

Chicago (17e ed.) Bronvermelding

Ramos, Exaltacion Castillo, en Rosalita Jesswani Sichermann. Introduction to Human Development. Manila: Textbook Development Committee, De La Salle University, 1978.

MLA (9e ed.) Bronvermelding

Ramos, Exaltacion Castillo, en Rosalita Jesswani Sichermann. Introduction to Human Development. Textbook Development Committee, De La Salle University, 1978.