@book {619,
	title = {Biology of Plants},
	year = {2013},
	publisher = {W.H. Freeman and Company Publishers},
	organization = {W.H. Freeman and Company Publishers},
	edition = {Eighth Edition},
	address = {New York},
	author = {Raven, P. H. and Evert, R. F. and Eichhorn, S. E.}
}
