Resources of biosphere on the territory of the USSR :   scientific principles of rational use and conservation : national report for the International Conference on the Resources of Biosphere, UNESCO, 1968. 

 - [Paris] :   Unesco,   [1968?]. 
 - 385 p. :   mapas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Recursos naturais--Conservação--Congressos.<br/>Recursos naturais--Conservação.--União Soviética
<br/><br/><label>Dewey Class. No.: </label>333.72