World Directory of Environmental Organizations: Preliminary Edition, Edited by Thaddeus C. Trzyna. Sierra Club, 1050 Mills Tower, San Francisco, California 94104: 155 pp., 28 × 21.5 × 1.1 cm, stiff paper covers, US $7.50, 1973.

1974 ◽  
Vol 1 (2) ◽  
pp. 160-160
Author(s):  
N. V. C. Polunin
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