Παραπομπή APA

Newkirk, I. A. (2008). 50 easy ways kids can help animals.

Παραπομπή Chicago Style

Newkirk, Ingrid; Author. 50 Easy Ways Kids Can Help Animals. New Delhi, HarperCollins Publishers India, 2008.

Παραπομπή MLA

Newkirk, Ingrid; Author. 50 Easy Ways Kids Can Help Animals. 2008.