Aaker, D. (1999). Marketing research 6th ed.
Chicago-viite (17. p.)Aaker, David. Marketing Research 6th Ed. New york, 1999.
MLA-viite (9. p.)Aaker, David. Marketing Research 6th Ed. 1999.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.
Aaker, D. (1999). Marketing research 6th ed.
Chicago-viite (17. p.)Aaker, David. Marketing Research 6th Ed. New york, 1999.
MLA-viite (9. p.)Aaker, David. Marketing Research 6th Ed. 1999.