00576nam a22001691 4500 1/11424 971020s1970 enk 000 0 eng d 11781 DLC GR-PeUP 307.1 HO Holleb, Doris B. Social & economics information for Urban planning / Doris B. Holleb. Chicago : Center for Urban Studies of the University of Chicago, 1970. 312p. ; 21 cm. Bibliography. Urban planning. INST UNIPILB MAIN 20040709 307.1 HO 00112122 00112122 LOAN v.2: 0 v.2 1