Results of a Biological Survey of the San Francisco Mountain Region And Desert of the Little Colorado, Arizona. 1. General Results With Special Reference to the Geographical And Vertical Distribution of Species. 2. Grand Cañon of the Colorado. 3. Annotat
Results of a Biological Survey of the San Francisco Mountain Region And Desert of the Little Colorado, Arizona. 1. General Results With Special Reference to the Geographical And Vertical Distribution of Species. 2. Grand Cañon of the Colorado. 3. Annotat
Book digitized by Google from the library of Harvard University and uploaded to the Internet Archive by user tpb. "Bibliographical appendix" : p. 127-128
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