000
00315nam a2200121Ia 4500
100
_a
Aggarwal, Y P
020
_a
81-207-0875-X
942
_c
BK
245
_a
Better sampling: concepts, techniques & evaluation
260
_a
Sterling Publishers Private Ltd., New Delhi
_c
1988
082
_a
311.21 Agg
300
_a
130
999
_c
67772
_d
67772