Não informado. (2000). University of Iowa studies in social science. University of Iowa.
Style de citation Chicago (17e éd.)Não informado. University of Iowa Studies in Social Science. Iowa City, Iowa: University of Iowa, 2000.
Style de citation MLA (8e éd.)Não informado. University of Iowa Studies in Social Science. University of Iowa, 2000.
Attention : ces citations peuvent ne pas être correctes à 100%.