APA-Zitierstil (7. Ausg.)

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

Chicago-Zitierstil (17. Ausg.)

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

MLA-Zitierstil (9. Ausg.)

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