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Filters: Author is Ballard, R D and First Letter Of Title is O  [Clear All Filters]
1978
R. D. Ballard, The ocean depths, in Ocean Realm, Washington, D.C.: National Geographic Society, 1978, pp. 148–167.
1977
J. B. Corliss and Ballard, R. D., Oasis of life in the cold abyss, National Geographic Magazine, vol. 152, pp. 441–453, 1977.