Palmer, A., & Bartley, B. (2009). The business environment (6th ed.). McGraw-Hill Higher Education.
Chicago-viite (17. p.)Palmer, Adrian, ja Bob Bartley. The Business Environment. 6th ed. New York: McGraw-Hill Higher Education, 2009.
MLA-viite (9. p.)Palmer, Adrian, ja Bob Bartley. The Business Environment. 6th ed. McGraw-Hill Higher Education, 2009.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.