Cita APA (7a ed.)
Palmer, A., & Hartley, B. (2009). The business environment (6th ed.). McGraw-Hill.
Cita Chicago Style (17a ed.)
Palmer, Adrian, y Bob Hartley. The Business Environment. 6th ed. London: McGraw-Hill, 2009.
Cita MLA (9a ed.)
Palmer, Adrian, y Bob Hartley. The Business Environment. 6th ed. McGraw-Hill, 2009.
Precaución: Estas citas no son 100% exactas.