International symposium on the ecological bases for environmental management on 28 and 29 Sept., 1970 at the FAO headquarters, via delle Terme di Ceracalla
International symposium on the ecological bases for environmental management on 28 and 29 Sept., 1970 at the FAO headquarters, via delle Terme di Ceracalla
- Rome International Council of Scientific Unions 1970
- n.p. 30cm.
Environmental management
EAF FOS I57
Environmental management
EAF FOS I57