TY  - BOOK
AU  - Hawley,Amos Henry
TI  - Human ecology: a theory of community structure 
AV  - HM51 .H38
U1  - 304.2 22
PY  - 1950///]
CY  - New York
PB  - Ronald Press Co.
KW  - Human ecology
N1  - Includes bibliographical references and index
ER  -