Dyfyniad APA

Sasieni, M., Yaspan, A., & Friedman, L. (1959). Operation research: Methods and problems. Ioppan company.

Dyfyniad Arddull Chicago

Sasieni, Maurice, Arthur Yaspan, and Lawrence Friedman. Operation Research: Methods and Problems. New York: Ioppan company, 1959.

Dyfyniad MLA

Sasieni, Maurice, et al. Operation Research: Methods and Problems. Ioppan company, 1959.

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