Fourth Book of Kings (Author Compiled by Isaias and Jeremias from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
6:25factaque est fames magna in Samaria et tamdiu obsessa est donec venundaretur caput asini octoginta argenteis et quarta pars cabi stercoris columbarum quinque argenteis
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.