"dePaola, Tomie". Children's Author/Illustrator Biographies. Educational Book & Media Association (edupaperback.org). n.d. Retrieved 2013-03-10. (Possibly reprinted from Major Authors and Illustrators for Children and Young Adults, 2nd ed., Gale Group, 2002.)
"dePaola, Tomie bio". Educational Book and Media Association (EBMA). Retrieved 2016-04-06.