Merrill, G. P. A treatise on rocks, rock-weathering and soils.
Cita Chicago Style (17a ed.)Merrill, George Perkins. A Treatise on Rocks, Rock-weathering and Soils. New York.
Cita MLA (8a ed.)Merrill, George Perkins. A Treatise on Rocks, Rock-weathering and Soils.
Precaución: Estas citas no son 100% exactas.