Alan Guttmacher Institute. (1981). Teenage pregnancy: The problem that hasn?t gone away. Alan Guttmacher Institute.
Style de citation Chicago (17e éd.)Alan Guttmacher Institute. Teenage Pregnancy: The Problem That Hasn?t Gone Away. New York: Alan Guttmacher Institute, 1981.
Style de citation MLA (9e éd.)Alan Guttmacher Institute. Teenage Pregnancy: The Problem That Hasn?t Gone Away. Alan Guttmacher Institute, 1981.
Attention : ces citations peuvent ne pas être correctes à 100%.