Twentieth General Assembly of the International Union of Biological Sciences, held Mainly in the University of Helsinki, Helsinki, Finland, during 20–26 August 1979
Polunin, NicholasVolume:
6
Language:
english
Journal:
Environmental Conservation
DOI:
10.1017/s0376892900003635
Date:
December, 1979
File:
PDF, 262 KB
english, 1979