Παραπομπή σε μορφή APA (7η εκδ.)

UNFPA. (2009). Adding it up: The costs and benefits of investing in family planning and maternal newborn health.

Παραπομπή σε μορφή Chicago (17η εκδ.)

UNFPA. Adding It Up: The Costs and Benefits of Investing in Family Planning and Maternal Newborn Health. 2009.

Παραπομπή σε μορφή MLA (8th εκδ.)

UNFPA. Adding It Up: The Costs and Benefits of Investing in Family Planning and Maternal Newborn Health. 2009.