Klaus, M. H., Kennell, J. H., & Klaus, P. H. (2012). The doula book: How a trained labor companion can help you have a shorter, easier, and healthier birth (3rd ed.). Lifelong Books/Da Capo Press.
Цитирование в стиле Чикаго (17-е изд.)Klaus, Marshall H., John H. Kennell, и Phyllis H. Klaus. The Doula Book: How a Trained Labor Companion Can Help You Have a Shorter, Easier, and Healthier Birth. 3rd ed. Boston, MA: Lifelong Books/Da Capo Press, 2012.
Цитирование MLA (8-е изд.)Klaus, Marshall H., et al. The Doula Book: How a Trained Labor Companion Can Help You Have a Shorter, Easier, and Healthier Birth. 3rd ed. Lifelong Books/Da Capo Press, 2012.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.