TY  - BOOK
AU  - PARKS (W A)
TI  - Exercises in commercial arithmetic: advanced course
U1  - 387/13 
PY  - 0000///
CY  - London
PB  - Gregg Publishing Division
KW  - Exercises
KW  - course
KW  - commercial
KW  - arithmetic
KW  - advanced
ER  -