@book{14884,
	author = {Aiyengar, N.K.N. . and Prasad, K.N. .},
	title = {An Introduction to Invertebrate Palaeontology /},
	publisher = {Vikas Publishing House Pvt. Ltd. ,},
	year = {1996.},
	address = {New Delhi :},
	edition = {1st ed. /}
}