Reader's Digest. (1994). Why in the world?: Revealing answers to searching questions about almost everything. Reader's Digest.
Chicago Style (17th ed.) CitationReader's Digest. Why in the World?: Revealing Answers to Searching Questions About Almost Everything. London: Reader's Digest, 1994.
MLA (9th ed.) CitationReader's Digest. Why in the World?: Revealing Answers to Searching Questions About Almost Everything. Reader's Digest, 1994.
Warning: These citations may not always be 100% accurate.