Gaya APA

Buffa, E, S., Dyer, J, , S. (1978). essentials of management science [or] operations research . New York: John Wiley & Sons.

Gaya MLA

Buffa, Elwood, S., Dyer, James, , S.. "essentials of management science [or] operations research". New York: John Wiley & Sons, 1978. Text.