@book {Ballard1970a,
	title = {{Research submersibles in oceanography}},
	year = {1970},
	pages = {73},
	publisher = {Marine Technology Society},
	organization = {Marine Technology Society},
	address = {Washington, D.C.},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	author = {Ballard, R D and Emery, K O}
}
