Fourth Book of Kings (Author Compiled by Isaias and Jeremias from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
20:20reliqua autem sermonum Ezechiae et omnis fortitudo eius et quomodo fecerit piscinam et aquaeductum et introduxerit aquas in civitatem nonne haec scripta sunt in libro sermonum dierum regum Iuda
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.