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