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Books by "Per Axel Rydberg"

4 books found

Key to the Rocky Mountain Flora

Key to the Rocky Mountain Flora

by Per Axel Rydberg

1919

Flora of the Black Hills of South Dakota

Flora of the Black Hills of South Dakota

by Per Axel Rydberg

1896

Studies on the Rocky Mountain Flora

Studies on the Rocky Mountain Flora

by Per Axel Rydberg

1900

Flora of the Rocky Mountains and Adjacent Plains, Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and Neighboring Parts of Nebraska, South Dakota, and British Columbia

Flora of the Rocky Mountains and Adjacent Plains, Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and Neighboring Parts of Nebraska, South Dakota, and British Columbia

by Per Axel Rydberg

1917 · New York : The author