Cita APA (7a ed.)

Ehrlich, A., & Kellogg, S. (1993). Parents in the pigpen, pigs in the tub. Dial Books for Young Readers.

Cita Chicago Style (17a ed.)

Ehrlich, Amy, y Steven Kellogg. Parents in the Pigpen, Pigs in the Tub. New York: Dial Books for Young Readers, 1993.

Cita MLA (8a ed.)

Ehrlich, Amy, y Steven Kellogg. Parents in the Pigpen, Pigs in the Tub. Dial Books for Young Readers, 1993.

Precaución: Estas citas no son 100% exactas.