APA (7th ed.) Citation

Newkirk, I., & Ratcliffe, J. (2008). One can make a difference: How simple actions can change the world. Adams Media Corp.

Chicago Style (17th ed.) Citation

Newkirk, Ingrid, and Jane Ratcliffe. One Can Make a Difference: How Simple Actions Can Change the World. Avon, Mass.: Adams Media Corp, 2008.

MLA (9th ed.) Citation

Newkirk, Ingrid, and Jane Ratcliffe. One Can Make a Difference: How Simple Actions Can Change the World. Adams Media Corp, 2008.