@book{6647,
	author = {Marshall, A. J.},
	title = {Textbook of zoology :},
	publisher = {CBS,},
	year = {c1997.},
	address = {New Delhi :},
	edition = {7th ed.},
	note = {This is the seventh edition of A Textbook of zoology, vol.II by T. Jeffery Parker and William A. Haswell.}
}