How long do people look at and listen to forest-oriented exhibits? / by James William Shiner and Elwood L. Shafer, Jr.

Author:: Shiner, J. William, 1935-
Additional Titles:: How long do people look at and listen to forest oriented exhibits?
Published:: Upper Darby, Pa. : Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station, 1975.
Physical Description:: 1 online resource (16 pages) : black and white illustrations
Additional Creators:: Shafer, Elwood L. and Northeastern Forest Experiment Station (Radnor, Pa.)