APA Zitierstil

Crosby, P. B. (1979). Quality is free: The art of making quality certain. New York: McGraw-Hill.

Chicago Zitierstil

Crosby, Philip B. Quality Is Free: The Art of Making Quality Certain. New York: McGraw-Hill, 1979.

MLA Zitierstil

Crosby, Philip B. Quality Is Free: The Art of Making Quality Certain. New York: McGraw-Hill, 1979.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.