Citazione Stile APA (7a Edizione)

(1991). Resources, enviroment, and population: Present knowledge, future options. The Population Council.

Citazione stile Chigago Style (17a edizione)

Resources, Enviroment, and Population: Present Knowledge, Future Options. Nueva York: The Population Council, 1991.

Citatione MLA (9a ed.)

Resources, Enviroment, and Population: Present Knowledge, Future Options. The Population Council, 1991.