Verbatim text: Ogden, E. C. 1943. The broad-leaved species of Potamogeton of North America north of Mexico. Rhodora. 45: 57--105, 119--163, 171--214.
Author: Ogden, E.C.
Year: 1943
Title: The broad-leaved species of Potamogeton of North America north of Mexico
Journal: Rhodora
Volume: 45
Pages: 57–105, 119-163, 171-214