Explorations :
Ballard, Robert D.
Explorations : a life of underwater adventure / Robert D. Ballard with Malcolm McConnell. - New York : Hyperion, 1998. - 407 p. : col. photos.
Ballard, Roberts D.
Oceanographers--United States--Biography.
Explorations : a life of underwater adventure / Robert D. Ballard with Malcolm McConnell. - New York : Hyperion, 1998. - 407 p. : col. photos.
Ballard, Roberts D.
Oceanographers--United States--Biography.