Style de citation APA

Ward, B. (1972). Only the earth: The care and maintenance of a small planet. New York: Pengiun Books.

Style de citation Chicago

Ward, Barbara. Only the Earth: The Care and Maintenance of a Small Planet. New York: Pengiun Books, 1972.

Style de citation MLA

Ward, Barbara. Only the Earth: The Care and Maintenance of a Small Planet. New York: Pengiun Books, 1972.

Attention : ces citations peuvent ne pas être correctes à 100%.