TY  - BOOK
AU  - Harper, William Massie
TI  - Operational research
T2  - The M & E handbook series
SN  - 0712115145
AV  - HD 20.5 Har 
PY  - 1975///
CY  - London
PB  - Macdonald and Evans
KW  - MANAGEMENT
KW  - OPERATIONS RESEARCH
N1  - Includes index. -Bibliography: p. vi-vii
ER  -