How long do people look at and listen to forest-oriented exhibits? /

Bibliographic Details
Main Author: Shiner, J. William, 1935-
Other Authors: Shafer, Elwood L.
Format: Government Document Book
Language:English
Published: Upper Darby, Pa. : Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station, 1975.
Series:USDA Forest Service research paper NE ; 325.
Subjects:
Description
Item Description:Shipping list number: unknown.
Physical Description:16 pages : illustrations ; 27 cm.