Johnson, D. L. (2015). World regional geography: A development approach (11th ed.). Pearson Education.
Citación estilo ChicagoJohnson, Douglas L. World Regional Geography: A Development Approach. 11th ed. Boston: Pearson Education, 2015.
Cita MLAJohnson, Douglas L. World Regional Geography: A Development Approach. 11th ed. Pearson Education, 2015.
Warning: These citations may not always be 100% accurate.