APA (7e ed.) Bronvermelding

Ziefert, H., & Demarest, C. L. (1999). I need a valentine!: A lift-the-flap story. Little Simon.

Chicago (17e ed.) Bronvermelding

Ziefert, Harriet, en Chris L. Demarest. I Need a Valentine!: A Lift-the-flap Story. New York, N.Y.: Little Simon, 1999.

MLA (8e ed.) Bronvermelding

Ziefert, Harriet, en Chris L. Demarest. I Need a Valentine!: A Lift-the-flap Story. Little Simon, 1999.