Cita APA

Shepherd, J., & Brannon, T. (2008). Let's help the earth: A pop-up book. Pleasantville, NY: Reader's Digest Children's Books.

Citación estilo Chicago

Shepherd, Jodie, y Tom Brannon. Let's Help the Earth: A Pop-up Book. Pleasantville, NY: Reader's Digest Children's Books, 2008.

Cita MLA

Shepherd, Jodie, y Tom Brannon. Let's Help the Earth: A Pop-up Book. Pleasantville, NY: Reader's Digest Children's Books, 2008.