TY  - BOOK
AU  - Keller, Gerald.
AU  - Warrack, Brian,
ED  - 
ED  - 
ED  - 
ED  - 
TI  - : a systematic approach 
SN  - 0534146767 (hardback)
SN  - 2
PY  - 1991///;copyright 199146
CY  - Belmont, CA
PB  - Wadsworth Publishing
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Commercial statistics
N1  - Includes bibliographical references and index; 5
ER  -