Environmental encyclopedia

Available for University of the Philippines Diliman via Gale Virtual Reference Library. Click here to access

The Social science encyclopedia

Environmental encyclopedia

Encyclopedia of science and religion

Encyclopedia of computer science and technology di Henderson, Harry 1951-

Van Nostrand's concise encyclopedia of science

Environmental encyclopedia di Bortman, Marci...[et al], editors

American political scientists a dictionary

Encyclopedia of literature and science

Encyclopedia of forensic science a compendium of detective fact and fiction di Conklin, Barbara Gardner