Murphey, R. (1978). An introduction to geography (4th ed.). Rand McNally.
Citazione stile Chigago Style (17a edizione)Murphey, Rhoads. An Introduction to Geography. 4th ed. Chicago: Rand McNally, 1978.
Citatione MLA (9a ed.)Murphey, Rhoads. An Introduction to Geography. 4th ed. Rand McNally, 1978.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.