Style de citation APA (7e éd.)

Collins, M. N., & Morris, M. G. (1985). Threatened swllowtail butterflies of the world. IUCN.

Style de citation Chicago (17e éd.)

Collins, Mark N., et Michael G. Morris. Threatened Swllowtail Butterflies of the World. Gland, Switzerland: IUCN, 1985.

Style de citation MLA (9e éd.)

Collins, Mark N., et Michael G. Morris. Threatened Swllowtail Butterflies of the World. IUCN, 1985.