Cita APA

Ludwigson, J. (1972). Resources: Used and abused. United Nations.

Citación estilo Chicago

Ludwigson, John. Resources: Used and Abused. New York: United Nations, 1972.

Cita MLA

Ludwigson, John. Resources: Used and Abused. United Nations, 1972.

Warning: These citations may not always be 100% accurate.