TY  - BOOK
AU  - Gupta,C.B.
TI  - An introduction to statistical methods,
AV  - HA29 .G91783 1968
U1  - 311/.2 
PY  - 1968///]
CY  - Agra
PB  - Ram Prasad
KW  - Statistics
N1  - "Selected references": p. [xv]-xvi (3d group)
ER  -