Sears, Paul Bigelow,  1891- <br/><br/>
The biology of the living landscape :  an introduction to ecology / 
by Paul B. Sears 
 - London :  George Allen & Unwin,  1964 
 - 176 p. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology