(1952). Guide to Ohio plants: A teaching manual of vascular plants for use in field and laboratory. Long.
Chicago-Zitierstil (17. Ausg.)Guide to Ohio Plants: A Teaching Manual of Vascular Plants for Use in Field and Laboratory. Columbus, Ohio: Long, 1952.
MLA-Zitierstil (9. Ausg.)Guide to Ohio Plants: A Teaching Manual of Vascular Plants for Use in Field and Laboratory. Long, 1952.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.