APA (7th ed.) Citation
Keyfitz, N. (1980). Population and the struggle for the world product. Colegio Nacional de Economistas.
Chicago Style (17th ed.) Citation
Keyfitz, Nathan. Population and the Struggle for the World Product. México: Colegio Nacional de Economistas, 1980.
MLA (9th ed.) Citation
Keyfitz, Nathan. Population and the Struggle for the World Product. Colegio Nacional de Economistas, 1980.
Warning: These citations may not always be 100% accurate.