APA (7th ed.) Citation

Collins, N. M., & Morris, M. (1985). Threatened swallowtail butterflies of the world: The IUCN red data book. IUCN.

Chicago Style (17th ed.) Citation

Collins, N. Mark, and Michael Morris. Threatened Swallowtail Butterflies of the World: The IUCN Red Data Book. Glan: IUCN, 1985.

MLA (9th ed.) Citation

Collins, N. Mark, and Michael Morris. Threatened Swallowtail Butterflies of the World: The IUCN Red Data Book. IUCN, 1985.

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