GRYNA, F. M. (2001). Quality planning and analysis: From product developmentthrough use.-- ed.4. McGraw-Hill Irwin.
Chicago-viite (17. p.)GRYNA, Frank M. Quality Planning and Analysis: From Product Developmentthrough Use.-- Ed.4. Boston: McGraw-Hill Irwin, 2001.
MLA-viite (9. p.)GRYNA, Frank M. Quality Planning and Analysis: From Product Developmentthrough Use.-- Ed.4. McGraw-Hill Irwin, 2001.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.