1969年，约翰·华莱士·斯宾塞写了《失踪地带》一书专门研究百慕大三角，两年后，一部名为《魔鬼三角》的该题材纪录片发行了。
In 1969 John Wallace Spencer wrote a book called Limbo of the Lost specifically about the Triangle and, two years later, a feature documentary on the subject, the Devil's Triangle, was released.
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