000
00259nam a2200097Ia 4500
008
220201s1961 xx 000 0 eng d
100
_a
Mathur,ML&Mehta,FS
245
0
_a
Problem in thermodynamic applied heat engine
260
_b
Jain brother
_c
1961
942
_2
ddc
999
_c
71769
_d
71769