APA-viite (7. p.)
Cohen, L. (1995). Quality function deployment: How to make QFD work for you. Addison-Wesley.
Chicago-viite (17. p.)
Cohen, Lou. Quality Function Deployment: How to Make QFD Work for You. Reading, Mass. : New York.: Addison-Wesley, 1995.
MLA-viite (9. p.)
Cohen, Lou. Quality Function Deployment: How to Make QFD Work for You. Addison-Wesley, 1995.
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