Tumbleweeds
Subtitle: ecology and abscission
By: by Donald A. Becker
Published: 1985
Language: eng
Format: Microform
Number of pages: 142
Subjects: Russian thistle -- Ecology; Russian thistle
Notes: Thesis (Ph. D.)--University of North Dakota, 1968

Bibliography: leaves 134-142

Microfiche of typescript. [Grand Forks, N.D. : University of North Dakota, 1985]. 3 microfiches : negative ; 11 x 15 cm