@book{13506,
	author = {Cummins, Arthur B. and Given, Ivan A.},
	title = {SME mining engineering handbook.},
	publisher = {AIME,},
	year = {1973.},
	series = {Mudd series},
	address = {New York :},
	note = {ING.7037 Ej.3 en Sala de Geociencias.}
}