TY  - BOOK
AU  - Tuttle, Alva M.
TI  - Elementary Business and Economic Statistics
U1  - 311.2 TUT 
PY  - 1957///
CY  - New York
PB  - Mc Graw - Hill Book Company, INC
KW  - Statistics, The Classification of Statistical Data, Time Series Analysis Cycles and forecasting
ER  -