00601cam a2200217 4500 362486808 TxAuBib 20110120120000.0 ||||||s2009||||||||||||||||||||||||und|u 9780786849581 0786849584 TxAuBib Barnett, Mac. Billy Twitters and his Blue Whale Problem. Hyperion, 2009. 20110120. Behavior Juvenile fiction. Blue whale Juvenile fiction. Families. SCHOOLS -- JUVENILE FICTION.