Eilers, L. J. (1994). The vascular plants of Iowa: An annotated checklist and natural history. University of Iowa Press.
Chicago-Zitierstil (17. Ausg.)Eilers, Lawrence J. The Vascular Plants of Iowa: An Annotated Checklist and Natural History. Iowa City: University of Iowa Press, 1994.
MLA-Zitierstil (9. Ausg.)Eilers, Lawrence J. The Vascular Plants of Iowa: An Annotated Checklist and Natural History. University of Iowa Press, 1994.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.