Gerrard, J. (1981). Soils and landforms: An integration of geomorphology and pedology. George Allen & Unwin.
Cita Chicago Style (17a ed.)Gerrard, John. Soils and Landforms: An Integration of Geomorphology and Pedology. London ; Boston: George Allen & Unwin, 1981.
Cita MLA (9a ed.)Gerrard, John. Soils and Landforms: An Integration of Geomorphology and Pedology. George Allen & Unwin, 1981.
Precaución: Estas citas no son 100% exactas.