found: His The oceans' military potential and what to do about it. [Phonotape] 1971.
found: Law of the Sea Institute. Conf. (21st : 1987 : Honolulu, Hawaii). The int. implications of extended ... c1989:CIP t.p. (John P. Craven) data sheet (John Pinna Craven, b. 10/30/24)
found: The silent war, 2001:CIP t.p. (John Piña Craven)
found: New York times (online), viewed Feb. 19, 2015(in obituary published Feb. 18: John P. Craven; b. John Piña Craven, Oct. 30, 1924, Brooklyn; d. Feb. 12, Hawaii, aged 90; former Navy scientist whose innovations in ocean technology and exploration led to some of the nation's most celebrated feats of espionage)