Autores:
  • Knowledge of the oceans is more than a matter of curiosity. Our very survival may hinge upon it.

    "John F. Kennedy: 1961 : containing the public messages, speeches, and statements of the president, January 20 to December 31, 1961" by John F. Kennedy, Washington: Office of the Federal Register, National Archives and Records Service, General Services Administration, 1962.
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