Plant association and management guide for the grand fir zone :
Gifford Pinchot National Forest /
by Christopher Topik.
APA Citation
Topik, C., United States. Forest Service. Pacific Northwest Region. (1989). Plant association and management guide for the grand fir zone: Gifford Pinchot National Forest. [Portland, Or.?]: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region.
MLA Citation
Topik, Christopher, and United States. Forest Service. Pacific Northwest Region. Plant Association And Management Guide for the Grand Fir Zone: Gifford Pinchot National Forest. [Portland, Or.?]: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region, 1989.
Warning: These citations may not always be complete (especially for serials).