Style de citation APA (7e éd.)
Helgen, J. C. (2012). Peril in the ponds: Deformed frogs, politics, and a biologist's quest. University of Massachusetts Press.
Style de citation Chicago (17e éd.)
Helgen, Judith Cairncross. Peril in the Ponds: Deformed Frogs, Politics, and a Biologist's Quest. Amherst, [Massachusetts] ; Boston, [Massachusetts]: University of Massachusetts Press, 2012.
Style de citation MLA (9e éd.)
Helgen, Judith Cairncross. Peril in the Ponds: Deformed Frogs, Politics, and a Biologist's Quest. University of Massachusetts Press, 2012.
Attention : ces citations peuvent ne pas être correctes à 100%.