SD — Audiobooks

The Training of a Forester
by Gifford Pinchot

The Principal Species of Wood: Their Characteristic Properties First Edition
by Charles H. (Charles Henry) Snow

Our national forests : $b a short popular account of the work of the United States Forest service on the national forests
by Richard H. D. (Richard Hans Douai) Boerker

Ecological Studies of the Timber Wolf in Northeastern Minnesota
by L. David Mech, Louis Daniel Frenzel, P. D. Karns, Robert R. Ream, John W. Winship

American Forest Trees
by Henry H. Gibson

Wood and Forest
by William Noyes

Motor Truck Logging Methods Engineering Experiment Station Series, Bulletin No. 12
by Frederick Malcolm Knapp