TY  - BOOK
AU  - Colberg,M.R.
AU  - Forbush,Dascomb R.
AU  - Whitaker,Gilbert R.
TI  - Business economics: principles and cases 
SN  - 0256033412
AV  - HD30.22 .C67 1986
U1  - 658 7th ed.
PY  - 1986///
CY  - Homewood, Ill.
PB  - Irwin
KW  - Managerial economics
N1  - Includes bibliographical references and indexes
ER  -