Background information relating to environmental guidelines for zones in gulf of Thailand requiring regulatory measures for protection of environmental resources and values 1976 Ludwig, H. F. |
A preliminary review and analysis of the literature on natural resources, their use and trends in Sri Lanka 1984 DuBois, Random |
Western Samoa : national environment and development management strategies (NEMS) 1993 Henson, Barbara |
Montagne et environnement : contribution à un état de l'environnement en montagne française 1985 Derkenne, Vincent |