@book{1239,
	author = {SONNTAG, RICHARD E. and VAN WYLEN, GORDON J.},
	title = {INTRODUCCION A LA TERMODINAMICA CLASICA Y  ESTADISTICA/ },
	publisher = {LIMUSA},
	year = {1977},
	address = {MEXICO: },
	note = {INCLUYE INDICE.}
}