Caldwell, L. K. (1972). In defense of earth: International protection of the biosphere. Indiana University Press.
Citación estilo ChicagoCaldwell, Lynton K. In Defense of Earth: International Protection of the Biosphere. London: Indiana University Press, 1972.
Cita MLACaldwell, Lynton K. In Defense of Earth: International Protection of the Biosphere. Indiana University Press, 1972.
Warning: These citations may not always be 100% accurate.