TY  - BOOK
AU  - Cruz, Maria Concepcion.
ED  - World Resources Institute.
TI  - Population growth, poverty, and environmental stress: frontier m igration in the Philippines and Costa Rica 
SN  - 0915825864 (pbk)
U1  - 304.6009599  20
PY  - 1992///
CY  - Washington, D.C
PB  - World Resources Institute
KW  - Migration, Internal
KW  - Philippines
KW  -  Population
KW  - Costa Rica
N1  - Includes bibliographical references
ER  -