@book{7750,
	author = {BOYCE, WILLIAM E. and DIPRIMA, RICHARD C.},
	title = {ECUACIONES DIFERENCIALES Y PROBLEMAS CON  VALORES EN LA FRONTERA/ },
	publisher = {LIMUSA},
	year = {\\\\},
	address = {MEXICO: },
	note = {INCLUYE INDICE.}
}