Abstract
Educational Principles and Techniques for Interpreters: Boulanger, F. David; Smith, John P., Pacific Northwest Forest and Range Experiment Station, U.S. Forest Service, Portland, Oregon, 1973, 24 pp., free.
Replenish the Earth: A Primer in Human Ecology: Miller, G. Tyler, Jr., Wadsworth Publishing, Belmont, California, 1972, 199 pp.
The Southwest Energy Complex: A Policy Evaluation: Baldwin, Malcolm F., The Conservation Foundation, Washington, D.C., 1973, ii+73 pp., paperbound, $3.50.