Duck Food Plants of the Illinois River Valley. Illinois Natural History Survey Bulletin, Champaign, IL, v. 21, n. 1-8, p. 237–280, 1941. DOI: 10.21900/j.inhs.v21.265. Disponível em: https://iopn.library.illinois.edu/journals/inhs/article/view/265.. Acesso em: 14 may. 2024.