TY  - BOOK
AU  - Douglas,Evan J.
TI  - Managerial economics: theory, practice, and problems 
SN  - 0135502365
PY  - 1979///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Managerial economics
N1  - Includes bibliographies and Index
ER  -