Pitty, A. F. (1978). Geography and soil properties. Methuen.
Cita Chicago Style (17a ed.)Pitty, Alistair F. Geography and Soil Properties. London: Methuen, 1978.
Cita MLA (9a ed.)Pitty, Alistair F. Geography and Soil Properties. Methuen, 1978.
Precaución: Estas citas no son 100% exactas.