@book{23552,
	author = {Sivarajan, V. V. and Robson, N. K. P.},
	title = {Introduction to the principles of plant taxonomy / },
	publisher = { Oxford & IBH,},
	year = {c1991.},
	address = {New Dehil :},
	edition = {2nd & rev ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/description/cam024/89034314.htm}
}