The influence of modern man on the vegetation of Yosemite Valley
By: [by] Robert P. Gibbens and Harold F. Heady.
Contributors: Heady, Harold F., joint author.
Series: California Agricultural Experiment Station [and] Extension Service. Manual 36
Publisher: University of California, Division of Agricultural Sciences
Published: 1964
Place of publication: [Berkeley]
Language: eng
Number of pages: 44
Subjects: Plants -- California -- Yosemite National Park.
Notes: "Literature cited": p. 35-36. Bibliography: p. 37.