TY  - BOOK
AU  - Laptev,Ivan Dmitrievich
TI  - The world of man in the world of nature
AV  - QH75 .L3413
U1  - 001.3 
PY  - 1979///
CY  - [Moscow]
PB  - Progress Publishers
KW  - Nature conservation
KW  - Environmental protection
KW  - Nature
KW  - Effect of human beings on
N1  - Translation of Mir li︠u︡deĭ v mire prirody; Includes bibliographical references
ER  -