Cita APA (7th ed.)
Piskunov, N. (1996). An introduction to operational research (2nd ed.). CBS Pub.
Cita Chicago (17th ed.)
Piskunov, N. An Introduction to Operational Research. 2nd ed. New Delhi: CBS Pub, 1996.
Cita MLA (9th ed.)
Piskunov, N. An Introduction to Operational Research. 2nd ed. CBS Pub, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.