APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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