Bell, F. G. (1983). Engineering properties of soils and rocks (2nd ed.). Butterworths.
Cita Chicago Style (17a ed.)Bell, F. G. Engineering Properties of Soils and Rocks. 2nd ed. London [etc.]: Butterworths, 1983.
Cita MLA (9a ed.)Bell, F. G. Engineering Properties of Soils and Rocks. 2nd ed. Butterworths, 1983.
Precaución: Estas citas no son 100% exactas.