@book {McElroy1975a,
	title = {{Design features of the submersible modular acoustic system}},
	year = {1975},
	pages = {36},
	publisher = {Bolt Beranek and Newman, Inc.},
	organization = {Bolt Beranek and Newman, Inc.},
	address = {Cambridge, Mass.},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	author = {McElroy, P T}
}
