Bell, F. G. (2007). Basic enviornmental and engineering geology. Whittles Publishing.
Citación estilo ChicagoBell, F G. Basic Enviornmental and Engineering Geology. U. K: Whittles Publishing, 2007.
Cita MLABell, F G. Basic Enviornmental and Engineering Geology. Whittles Publishing, 2007.
Precaución: Estas citas no son 100% exactas.