Rosenbloom, Joseph. Biggest Riddle Book in the World / J. Rosenbloom ; Ill. J. Behr. - New York : Sterling Publishing Co., 1976. - 272 p. : ill. ; 22 cm. Index, p. 267-272 ISBN: 0-8069-4532-X LCCN: Subjects--Topical Terms: Games and entertainment. Subjects--Index Terms: Riddles