@book{40430,
	author = {Morillo Safa, Eduardo.},
	title = {Caucho natural y productos sintéticos similares.},
	publisher = {Elite,},
	year = {1947.},
	address = {Caracas :},
	note = {Ponencia presentada en: Conferencia Interamericana de Agricultura 3. Washington, 1930}
}