Não informado. (2008). State University of Iowa studies in natural history. State University of Iowa.
Style de citation Chicago (17e éd.)Não informado. State University of Iowa Studies in Natural History. Iowa City, Iowa: State University of Iowa, 2008.
Style de citation MLA (8e éd.)Não informado. State University of Iowa Studies in Natural History. State University of Iowa, 2008.
Attention : ces citations peuvent ne pas être correctes à 100%.