Search Results - McDougall, W. B. (Walter Byron), 1883-1980

Plant ecology / by McDougall, W. B. (Walter Byron), 1883-1980

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Plants of Big Bend National Park : with illustrations and keys for identification / by McDougall, W. B. (Walter Byron), 1883-1980

Plants of Yellowstone National Park / by McDougall, W. B. (Walter Byron), 1883-1980

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Seed plants of Montezuma Castle National Monument : with keys for the identification of species / by McDougall, W. B. (Walter Byron), 1883-1980

Typical seed plants of the ponderosa pine zone : with keys for the identification of species found in the vicinity of the Museum of Northern Arizona, Flagstaff / by McDougall, W. B. (Walter Byron), 1883-1980

Seed plants of Wupatki and Sunset Crater National Monuments : with keys for the identification of species / by McDougall, W. B. (Walter Byron), 1883-1980

Grand Canyon wild flowers / by McDougall, W. B. (Walter Byron), 1883-1980

Plants of Yellowstone National Park / by McDougall, W. B. (Walter Byron), 1883-1980, Baggley, Herma A.

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