Use and conservation of the biosphere : proceedings /
- Paris : Unesco, 1970.
- 272 p. 24 cm.
- Natural resources research, 10 SC.69/XII.16/A. .
- Unesco. [Document] SC.69/XII.16/A .
- Natural resources research ; 10. .
Includes bibliographies.
75024233
F***
Conservation of natural resources--Congresses.
S912 / .I57 1968
572 / UNE
Includes bibliographies.
75024233
F***
Conservation of natural resources--Congresses.
S912 / .I57 1968
572 / UNE