@article {Ballard1975b,
	title = {{Probing the Mid-Atlantic Rift}},
	journal = {Science Teacher},
	volume = {42},
	year = {1975},
	pages = {12{\textendash}18},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0036-8555},
	author = {Ballard, R D}
}
