@book {Ballard1974d,
	title = {{The nature of Triassic continental rift structures in the Gulf of Maine}},
	series = {WHOI technical reports},
	volume = {74-71},
	year = {1974},
	pages = {96},
	publisher = {Woods Hole Oceanographic Institution},
	organization = {Woods Hole Oceanographic Institution},
	address = {Woods Hole, Mass.},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	author = {Ballard, R D}
}
