@book{2093,
	author = {FABREGAS PUIG, ANDRES. and PANIAGUA MIJANGOS, JORGE. and UNIVERSIDAD AUTONOMA DE CHIAPAS.},
	title = {INVESTIGACION CIENTIFICA : },
	publisher = {UN.A.CH.},
	year = {1988},
	series = {COLEC. ESPECIAL},
	address = {TUXTLA GUTIERREZ ; CHIAPAS: }
}