TY  - BOOK
TI  - Practical work in elementary school science grade 1: Sourcebook for teachers
SN  - 971-570-096-9
U1  - 507/ C117 
PY  - 2001///
CY  - Diliman, Quezon City
PB  - National Institute for Science and Mathematics Education Development University of the Philippines
N1  - GS; English
ER  -