TY  - BOOK
AU  - Pritchard, M.A., ed.
TI  - A system approach to forest operations planning control
T2  - Forestry commission bulletin
SN  - 0117102725
U1  - 634.90285 21st ed.
PY  - 1989///
CY  - London
PB  - Her Majestys Stationary Office
KW  - Forestry
KW  - Information systems
ER  -