000
00251nam a2200109Ia 4500
008
220201s1962 xx 000 0 eng d
100
_a
Sachdev,SK
245
0
_a
Heat engine laboratory
260
_b
Atma ram& sons
_c
1962
300
_a
184
942
_2
ddc
999
_c
79031
_d
79031