A preliminary soil survey of the Siskiyou National Forest :
silvical report, April 15, 1913 /
H.E. Haefner, forest assistant.

APA Citation

Haefner, H. E., United States. Forest Service. (1913). A preliminary soil survey of the Siskiyou National Forest: silvical report, April 15, 1913. [s.l: s.n.

MLA Citation

Haefner, Henry E., 1884-, and United States. Forest Service. A Preliminary Soil Survey of the Siskiyou National Forest: Silvical Report, April 15, 1913. [s.l: s.n, 1913.

Warning: These citations may not always be complete (especially for serials).