TY  - BOOK
AU  - Howley, Amos H, ed.
AU  - Janowitz, Morris, ed.,series
AU  - McKenzie, Roderick D
TI  - Human ecology
CY  - Chicago
KW  - Demography
KW  - Human community - ecological aspects
KW  - Human ecology
KW  - Human geography
KW  - Human migration
KW  - Population geography
ER  -