Gaya APA

Dilworth, J, B. (1989). Production and operations Management : manufacturing and nonmanufacturing (4th ed.). New York: The United States by Random House, Inc..

Gaya MLA

Dilworth, James, B. "Production and operations Management : manufacturing and nonmanufacturing". 4th ed. New York: The United States by Random House, Inc., 1989. Text.