APA
The Operational Research Group of the National Coal Board, Houlden.B.T, . (1962). Some Techniques of Operational Research. The English Universities Press Ltd: London.
Chicago
The Operational Research Group of the National Coal Board, Houlden.B.T, . 1962. Some Techniques of Operational Research. The English Universities Press Ltd: London.
Harvard
The Operational Research Group of the National Coal Board, Houlden.B.T, . (1962). Some Techniques of Operational Research. The English Universities Press Ltd: London.
MLA
The Operational Research Group of the National Coal Board, Houlden.B.T, . Some Techniques of Operational Research. The English Universities Press Ltd: London. 1962.
