000
00310nam a2200133Ia 4500
008
221001s1977 xx 000 0 eng d
082
_a
311.2 GUL
100
_a
Gulshan, S. S.
245
0
_a
Practical statistics
250
_a
2nd ed.
260
_a
Delhi
_b
S. Chand
_c
1977
300
_a
557p.
942
_2
ddc
_c
BK
999
_c
24917
_d
24917