TY  - BOOK
AU  - Mattson,D.E.
TI  - Statistics: difficult concepts, understandable explanations 
SN  - 0865160562
AV  - QA 276.12 MAT
PY  - 1986///
CY  - Wauconda
PB  - Bolchazy-Carducci
KW  - Statistics
KW  - Medical statistics
N1  - Includes index
ER  -