@book{22548,
	author = {Hart, Harold, 1922- and  Craine, Leslie E.},
	title = {Química orgánica},
	publisher = {McGraw-Hill Interamericana de España},
	year = {2007},
	address = {Madrid},
	edition = {12 ed.},
	url = {http://eportalbull7d.tk/quimica-organica-de-hart-pdf.html}
}