Não informado. (2001). Iowa State journal of research. Iowa State University.
Style de citation Chicago (17e éd.)Não informado. Iowa State Journal of Research. Ames, Iowa: Iowa State University, 2001.
Style de citation MLA (8e éd.)Não informado. Iowa State Journal of Research. Iowa State University, 2001.
Attention : ces citations peuvent ne pas être correctes à 100%.