000
00281nam a2200121 4500
082
_a
530 PHY
_b
007564
245
_a
General Physics & Thermal Physics
260
_b
Open University of Sri Lanka
_c
1983
300
_a
232
490
_a
Block - 1A
650
_a
Physics
_9
343
942
_c
BK
999
_c
5032
_d
5032