inexpensive truck-mounted ladder for inspecting conelet development and collecting cones
By: W.J. Rietveld.
Contributors: Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)
Series: USDA Forest Service research note RM -- 288.
Publisher: Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1975
Place of publication: Fort Collins, Colo
Language: eng
Subjects: Conifers -- Seeds -- Harvesting.; Forests and forestry -- Equipment and supplies.; Ladders.
Notes: Caption title.

"May 1975."

Includes bibliographical references (p. 4).