Cita APA (7a ed.)

Houlden, B. T. (1970). Some techniques of operational research (4th impression.). English Universities Press Limited.

Cita Chicago Style (17a ed.)

Houlden, Brian Thomas. Some Techniques of Operational Research. 4th impression. London: English Universities Press Limited, 1970.

Cita MLA (9a ed.)

Houlden, Brian Thomas. Some Techniques of Operational Research. 4th impression. English Universities Press Limited, 1970.