TY  - BOOK
AU  - Punsalan,Twila G.
AU  - Uriarte,Gabriel G.
TI  - Statistics: a simplified approach 
SN  - 9712301486
U1  - Fil. 519.5 P984 1989 
PY  - 1989///
CY  - Manila
PB  - Rex Book Store
KW  - Statistics
N1  - Includes index
ER  -