@book {174,
	title = {The Sipuncula. Their systematics, biology and evolution},
	year = {1994},
	pages = {453 pp},
	publisher = {Cornell University Press},
	organization = {Cornell University Press},
	address = {Ithaca, N.Y.},
	author = {Cutler, E. B.}
}
@article {200,
	title = {The sipunculan genus Lithacrosiphon Shipley, a taxonomic review},
	journal = {Zoological Journal of the Linnean Society},
	volume = {56},
	number = {3},
	year = {1975},
	pages = {235-248},
	author = {Cutler, E. B. and Jurczak, E.}
}
@book {625,
	title = {The phyla Sipuncula and Echiura},
	year = {1972},
	pages = {528 pp},
	publisher = {Trustees British Mus. (Nat. Hist.)},
	organization = {Trustees British Mus. (Nat. Hist.)},
	address = {London},
	author = {Stephen, A. C. and Edmonds, S. J.}
}
@inbook {588,
	title = {Sipunculoidea, with an account of a new genus Lithacrosiphon},
	booktitle = {Fauna and geography of the Maldive and Laccadive Archipelagoes},
	year = {1902},
	pages = {131-140},
	publisher = {University Press},
	organization = {University Press},
	address = {Cambridge},
	author = {Shipley, A. E.},
	editor = {Gardiner, J. S.}
}
