Cita APA (7th ed.)

HAEHLING CHRISTOPH. (1975). CASES IN OPERATIONAL RESEARCH. HOLDEN DAY.

Cita Chicago (17th ed.)

HAEHLING CHRISTOPH. CASES IN OPERATIONAL RESEARCH. LONDON: HOLDEN DAY, 1975.

Cita MLA (9th ed.)

HAEHLING CHRISTOPH. CASES IN OPERATIONAL RESEARCH. HOLDEN DAY, 1975.