Scher, J. (1985). Pregnancy everything you need to know. penguin Books.
Style de citation Chicago (17e éd.)Scher, Jonathan. Pregnancy Everything You Need to Know. Great Britain: penguin Books, 1985.
Style de citation MLA (8e éd.)Scher, Jonathan. Pregnancy Everything You Need to Know. penguin Books, 1985.
Attention : ces citations peuvent ne pas être correctes à 100%.