Cita APA

Country and area. (1980). Sixth Report On The Word. Geneva: World Health Organization.

Chicago Style Citation

Country and area. Sixth Report On The Word. Geneva: World Health Organization, 1980.

Cita MLA

Country and area. Sixth Report On The Word. Geneva: World Health Organization, 1980.

Atenció: Aquestes cites poden no estar 100% correctes.