Wilcock, D., & Shaw, J. (1983). Physical geography: Flows, cycles, sistems and change. Blackie.
Cita Chicago Style (17a ed.)Wilcock, David, y John Shaw. Physical Geography: Flows, Cycles, Sistems and Change. London: Blackie, 1983.
Cita MLA (9a ed.)Wilcock, David, y John Shaw. Physical Geography: Flows, Cycles, Sistems and Change. Blackie, 1983.
Precaución: Estas citas no son 100% exactas.