@book{421,
	author = {Weier, T. Elliot and Stocking, C. Ralph,},
	title = {Botany : an introduction to plant biology /},
	publisher = {National Book Store,},
	year = {c1950.},
	address = {Quezon City :},
	edition = {6th ed.},
	note = {First-3d ed. by W. W. Robbins and others.},
	url = {http://www.loc.gov/catdir/enhancements/fy0607/73018035-d.html}
}