TY  - BOOK
AU  - Szafer,Wladyslaw,1886-1970
AU  - Michajlow,Wlozimierz p p
TI  - Protection of man's natural environment
PY  - 1973///
CY  - Warszawa
PB  - PWN-Polish Scientific Publishers
KW  - Nature conservation
KW  - Environmental protection
N1  - At head of title: Polish Academy of Sciences. Committee on the Protection of Nature and Natural Resources. Nature Protection Research Centre; Includes bibliographies
ER  -