Edvardsson, B., Thomasson, B., & Ovretveit, J. (1994). Quality of service: Making it really work. New York: McGraw-Hill.
استشهاد بنمط شيكاغوEdvardsson, Bo, Bertil Thomasson, and John Ovretveit. Quality of Service: Making It Really Work. New York: McGraw-Hill, 1994.
MLA استشهادEdvardsson, Bo, Bertil Thomasson, and John Ovretveit. Quality of Service: Making It Really Work. New York: McGraw-Hill, 1994.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.