00384nam a2200145Ia 4500 20260205102650.0 260111s9999||||xx |||||||||||||| ||und|| 570.7 M313T Mangal, S. K Teaching of physical and life sciences New Delhi Arya book 1991 397p Life Sciences-Study and teaching BK 250095 250095 0 0 0 0 IC IC 2026-02-05 0 570.7 M313T IC7756 2026-02-05 10:26:50 2026-02-05 BK