Response of ponderosa pine seeds to light
By: Michael Harrington.
Contributors: Intermountain Forest and Range Experiment Station (Ogden, Utah); United States. Forest Service.
Series: Research note INT -- 220.; Research note INT -- 220.
Publisher: Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station
Published: 1977
Place of publication: Ogden, Utah
Language: eng
Notes: Issued May 1977.

Bibliography: p. 8.