APA

The Alan Guttmacher Institute, . (1994). Aborto clandestino. New York: Guttmacher Institute.

Chicago

The Alan Guttmacher Institute, . 1994. Aborto clandestino. New York: Guttmacher Institute.

Harvard

The Alan Guttmacher Institute, . (1994). Aborto clandestino. New York: Guttmacher Institute.

MLA

The Alan Guttmacher Institute, . Aborto clandestino. New York: Guttmacher Institute. 1994.