@book{29148,
	author = {Mayo, Oliver.},
	title = {The theory of plant breeding /},
	publisher = {Clarendon Press,},
	year = {1987.},
	address = {Oxford :},
	edition = {2nd ed.},
	note = {Includes indexes.},
	url = {http://www.loc.gov/catdir/enhancements/fy0637/86012750-d.html}
}