@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 {176,
	title = {Madagascar and Indian Ocean Sipuncula},
	journal = {Bulletin du Museum National d{\textquoteright}Histoire Naturelle, Paris},
	volume = {4e},
	number = {1},
	year = {1979},
	pages = {941-990},
	author = {Cutler, E. B. and Cutler, N. J.}
}
@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.}
}
