TY  - BOOK
AU  - Perlick, Walter W 
TI  - Programmed learning aid for Introduction to business.
SN  - 0256023522
U1  - 650.077 23
PY  - 1981///
CY  - Homewood
PB  - Homewood, Ill., Learning Systems Co., a division of Richard D. Irwin
KW  - Business
KW  - Programmed instruction
ER  -