Brelin, H. K. D. (1995). Focused Quality.
Chicago-viite (17. p.)Brelin, Harvey K; Davenport. Focused Quality. 1995.
MLA-viite (9. p.)Brelin, Harvey K; Davenport. Focused Quality. 1995.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.
Brelin, H. K. D. (1995). Focused Quality.
Chicago-viite (17. p.)Brelin, Harvey K; Davenport. Focused Quality. 1995.
MLA-viite (9. p.)Brelin, Harvey K; Davenport. Focused Quality. 1995.