APA-ийн эшлэл(7 дахь хэвлэлт)

Power, J. (1968). How life begins: The exciting story of human and animal birth. Simon and Schuster.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Power, Jules. How Life Begins: The Exciting Story of Human and Animal Birth. New York: Simon and Schuster, 1968.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Power, Jules. How Life Begins: The Exciting Story of Human and Animal Birth. Simon and Schuster, 1968.