Helicopter logging : a model for locating landings /

Bibliographic Details
Main Author:	Egging, Louis T.
Other Authors:	Gibson, David F. (David Frederic), 1942-
Format:	Government Document Book
Language:	English
Published:	Ogden, Utah : Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1974.
Series:	USDA Forest Service research paper INT ; 155.
Subjects:	Logging, Aerial > Computer programs.

Evans: US Documents (Annex 5th floor)