Straight talk about mental tests by Jensen, Arthur Robert

Teaching conservation in developing nations by Brace, Judith

Extinction the causes and consequences of the disappearance of species by Ehrlich, Paul R.

First National Conservation Conference on Natural Resources, conducted at the Philippine Plaza Hotel 9-12 December 1981

Evolution of the gas industry. by Peebles, Malcolm W. H.

Renewable resources in our future by Hinckley, Alden D.

Energy & resource development of continental margins

Available for University of the Philippines System via ScienceDirect. Click here to access
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Outdoor photography

Junk food, fast food, health food what American eats and why by Perl, Lila

Nature's design a photographic essay by Walker, Theodore D.