@book{629,
	author = {Beier, Friedrich-Karl and Crespi, R. S., },
	title = {Biotechnology and patent protection :},
	publisher = {OECD, },
	year = {1985},
	address = {Paris :},
	url = {https://www.cicy.mx/sitios/sib/doctoelectronico/637.pdf}
}