TY  - BOOK
AU  - Copulsky, William,
ED  - American Management Association
TI  - Practical sales forecasting
SN  - 0814421326
AV  - HF5438 C66
PY  - 1970///
CY  - [New York]
PB  - American Management Association
KW  - Pronóstico de ventas
ER  -