@book{256937,
	author = {Nicholl, Desmond S. T.},
	title = {An introduction to genetic engineering / },
	publisher = {Cambridge University Press, },
	year = {2008 (2016 printing). },
	address = {Cambridge : },
	edition = {3rd ed.},
	url = {http://www.loc.gov/catdir/description/cam022/2001037542.html}
}