@book{153,
	author = {BOYCE, WILLIAM E. and DIPRIMA, RICHARD C.},
	title = {ECUACIONES DIFERENCIALES Y PROBLEMAS CON  VALORES EN LA FRONTERA/ },
	publisher = {LIMUSA},
	year = {1978},
	address = {MEXICO: },
	edition = {3},
	note = {INCLUYE INDICE.}
}