TY  - BOOK
AU  - Bilbao,Purita P.
AU  - Juyasan Shirley R.
AU  - Morano,Lourdes N.
AU  - Tingson,Lea C.
TI  - Teaching science in the elementary grades: volume 1 : chemistry and biology 
SN  - 9786218035645
U1  - 372.35 
PY  - 2019///
CY  - Manila, Philippines
PB  - LORIMAR Publishing Inc.
KW  - Science
KW  - Elementary
N1  - Includes bibliographical references
ER  -