APA (7th ed.) Citation

Amy Ogle, Lisa Mazzullo, & Allison Krug. (2011). Before your pregnancy: A 90-day guide for couples on how to prepare for a healthy conception. Ballantine Books.

Chicago Style (17th ed.) Citation

Amy Ogle, Lisa Mazzullo, and Allison Krug. Before Your Pregnancy: A 90-day Guide for Couples on How to Prepare for a Healthy Conception. New York: Ballantine Books, 2011.

MLA (9th ed.) Citation

Amy Ogle, et al. Before Your Pregnancy: A 90-day Guide for Couples on How to Prepare for a Healthy Conception. Ballantine Books, 2011.