@book{32028,
	author = {Parker, T. Jeffery (Thomas Jeffery), 1850-1897 and Haswell, William A. 1854-1925},
	title = {Textbook of zoology : invertebrates Vol. II /},
	publisher = {CBS Publishers & Distributors,},
	year = {1987.},
	address = {New Delhi :}
}