TY  - BOOK
AU  - Duerr, William A.
AU  - Christiansen, Neils B.
TI  - Exercises in the managerial economics of forestry
U1  - 330.1 
PY  - 1964///
CY  - Dubuque : 
PB  - WM. C. Brown
KW  - Managerial economics -- Problems, exercises, etc.
ER  -