The hidden forest
By: text by Sigurd F. Olson ; photographs by Les Blacklock, Nadine Blacklock.
Contributors: Blacklock, Les.; Blacklock, Nadine.
Edition: Rev. ed.
Publisher: Voyageur Press
Published: 1990
Place of publication: Stillwater, MN, U.S.A
Language: eng
Number of pages: 128
Subjects: Forest ecology.