TY  - BOOK
AU  - Pulido, Paz et.al.
TI  - Development and progress: socio-economic problems concepts and inquiry 
SN  -  
U1  -  303.4409599 D49 
PY  - 1990///
CY  -  Manila, PH
PB  -  Philippine Book Company
N1  - CoED; Bachelor of Elementary Education
ER  -