APA (7e ed.) Bronvermelding

Scher, J. (1985). Pregnancy everything you need to know. penguin Books.

Chicago (17e ed.) Bronvermelding

Scher, Jonathan. Pregnancy Everything You Need to Know. Great Britain: penguin Books, 1985.

MLA (8e ed.) Bronvermelding

Scher, Jonathan. Pregnancy Everything You Need to Know. penguin Books, 1985.