00749cam a22002531 4500 7894461 BD-DhUL 20160328120943.0 720302s1950 nyuab b 000 0 eng 50007591 (OCoLC)254583 DLC ODaWU OCoLC DLC BD-DhUL premarc HM51 .H38 301.3 HAH Hawley, Amos Henry. Human ecology : a theory of community structure / Amos H. Hawley. New York : Ronald Press, c1950. xvi, 456 p. : ill., maps ; 24 cm. Includes bibliographical references. Human ecology. 7 cbc oclcrpl u ncip 19 y-gencatlg ddc BK 50729 50729 0 0 ddc 0 301_300000000000000_HAH 0 NFIC 84425 DUL DUL GEN 1963-08-19 Gift 301.3 HAH A25035 2016-03-28 2016-03-28 BK