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Fourth World Congress on Conservation of the Built and Natural Environments, held at the University of Toronto, Toronto, Ontario, Canada, during 22–27 May 1989
Polunin, NicholasVolume:
16
Language:
english
Journal:
Environmental Conservation
DOI:
10.1017/s0376892900009553
Date:
September, 1989
File:
PDF, 257 KB
english, 1989