@inbook {516,
	title = {Sipuncula and Echiura},
	booktitle = {Intertidal Invertebrates of California},
	year = {1980},
	pages = {Chapter 19 490-498},
	publisher = {Stanford University Press},
	organization = {Stanford University Press},
	author = {Rice, M. E.},
	editor = {Morris, R. H. and Abbott, D. P. and Haderlie, E. C.}
}
