Investment appraisal /

af West,, C.
Udgivet 2002

Introduction to operations research

af Churchman, West C; Ackoff, Russell
Udgivet 1961

Operation Research

af Churchman, West, C and Ackoff, Russell, L and Arnoff, Leonard,E
Udgivet 1957

Introduction to Operations Research

af Churchman, West, C and Ack of, Russell, L and Arnoff Leonard, E.
Udgivet 1957