Style de citation APA (7e éd.)

(2001). Levels and trends of contraceptive use as assessed in 1998. United Nations.

Style de citation Chicago (17e éd.)

Levels and Trends of Contraceptive Use as Assessed in 1998. New York: United Nations, 2001.

Style de citation MLA (9e éd.)

Levels and Trends of Contraceptive Use as Assessed in 1998. United Nations, 2001.

Attention : ces citations peuvent ne pas être correctes à 100%.