TY  - BOOK
AU  - Bilbao, Purita P.
AU  - Jusayan, Shirley R.,
AU  - Lunar, Leah L.,
AU  - Morano, Lourdes N.,
AU  - Oranio, Ian B.,
AU  - Tingson, Lea C.,
AU  - Tingson, Lea C.,
TI  - Teaching science in the elementary grades: volume 1 : chemistry and biology 
AV  - LB 1585  .B49 2019
PY  - 2019///
CY  - Quezon City
PB  - Lorimar Publishing
KW  - Science
ER  -