@book {514,
	title = {Biology of Plants},
	year = {2005},
	publisher = {W. H. Freeman \& Company},
	organization = {W. H. Freeman \& Company},
	edition = {Seventh Edition},
	address = {New York},
	author = {P. H. Raven and R. F. Evert and S. E. Eichhorn}
}
