00534cam a2200193 4500 66782572 TxAuBib 20050727120000.0 050727s1999||||||||||||||||||||||||eng|u 9780590120081 0590120085 (OCoLC)39261884 TxAuBib Keenan, Sheila. What Time is it? A Book of Math Riddles. USA : Scholastic Inc, 1999. 20050727. TXLUC