Szafer, Wladyslaw, 1886-1970. <br/><br/>
Protection of man's natural environment 
by Wladyslaw Szafer 
 - Warszawa  PWN-Polish Scientific Publishers  1973 
 - 663 p.: ill. ; 25 cm. 
<br/><br/> At head of title: Polish Academy of Sciences. Committee on the Protection of Nature and Natural Resources. Nature Protection Research Centre. 
<br/><br/>Includes bibliographies. 
<br/><br/><br/>engpol 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nature conservation<br/>Environmental protection