TY  - BOOK
AU  - Nucum, Zenaida T.
TI  - Earth science (for senior high school)
SN  - 978-621-409-026-6
U1  - Fil. 550 N8839 C2016 
PY  - 2016///
CY  - Philippines
PB  - Books Atbp. Publishing Corp.
ER  -