Psychologie.

MLA

Heuvelman, Ard, Stans Drossaert, and Jan Gutteling. Psychologie. Amsterdam: Boom, 2004.

APA

Heuvelman, A., Drossaert, S., & Gutteling, J. (2004). Psychologie. Amsterdam: Boom.

Chicago

Heuvelman, Ard, Stans Drossaert, and Jan Gutteling. Psychologie. Amsterdam: Boom, 2004.