TY  - BOOK
AU  - Geyer,H.S.
AU  - Kontuly,Thomas
TI  - Differential urbanization: integrating spatial models 
SN  - 9780340662854
PY  - 1996///
CY  - London
PB  - Arnold
KW  - Migration, Internal
KW  - Population geography
N1  - Includes bibliographical references and index
ER  -