Gaya APA

D.Posner, G. et al (2013). Oxorn-Foote Human Labor & Birth (Eds. I). New York: Mc Graw Hill Education.

Gaya MLA

D.Posner, Glenn. et al. "Oxorn-Foote Human Labor & Birth". Eds. I New York: Mc Graw Hill Education, 2013. Text.