Cita APA

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

Citación estilo Chicago

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

Cita MLA

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