000
00287nam a2200121Ia 4500
008
210901s1970 xx 000 0 eng d
082
_a
310 GUP
100
_a
Gupta S.P
245
0
_a
Statistical methods
260
_a
New Delhi
_b
Sultan Chand
_c
1994
300
_a
1230p.
942
_2
ddc
_c
BK
999
_c
14289
_d
14289