00644nam a2200193 a 4500 20240614064927.0 180713s19uu xx 00 eng d 9780531282694 HSLRC HSLRC HSLRC Gray, Susan H. 21265 Ecology : The study of ecosystem / Susan H. Gray. New York : Scholastic pub, 2012. 48pages ; colored ; illustrations ; 21 cm 1 Ecology Study 21266 Ecosystem Philippines 21267 lcc BK 82883 82883 0 0 lcc 0 0 HSLRC HSLRC SRC 2024-06-14 LEX750 G778 2012 LEX3869 2025-11-08 00:00:00 1 2024-06-14 BK 0 0 lcc 0 0 HSLRC HSLRC SRC 2024-06-14 0 LEX750 G778 2012 LEX3870 2026-03-14 00:00:00 1 2024-06-14 BK