Cita APA (7a ed.)

Beilby, M. H. (1976). Economics and operational research. Academic Press.

Cita Chicago Style (17a ed.)

Beilby, M. H. Economics and Operational Research. New York: Academic Press, 1976.

Cita MLA (8a ed.)

Beilby, M. H. Economics and Operational Research. Academic Press, 1976.