Camael was excluded from the Holy See's list of named angels in the 2001 Directory on popular piety, which states: "The practice of assigning names to the Holy Angels should be discouraged, except in the cases of Gabriel, Raphael, and Michael whose names are contained in Holy Scripture".[1]
Kreeft, Peter J. 1995. Angels and Demons: What Do We Really Know About Them? Ignatius Press. ISBN0-89870-550-9
Lewis, James R. (1995). Angels A to Z. Visible Ink Press. ISBN0-7876-0652-9
Melville, Francis, 2001. The Book of Angels: Turn to Your Angels for Guidance, Comfort, and Inspiration. Barron's Educational Series; 1st edition. ISBN0-7641-5403-6
Ronner, John, 1993. Know Your Angels: The Angel Almanac With Biographies of 100 Prominent Angels in Legend & Folklore-And Much More! Mamre Press. ISBN0-932945-40-6.