TheOneRing.net (Firm), Broadway, C., & Challis, E. (2003). The people's guide to J.R.R. Tolkien. Cold Spring Press.
Dyfyniad Arddull ChicagoTheOneRing.net (Firm), Cliff Broadway, and Erica Challis. The People's Guide to J.R.R. Tolkien. Cold Spring Harbor, NY: Cold Spring Press, 2003.
Dyfyniad MLATheOneRing.net (Firm), et al. The People's Guide to J.R.R. Tolkien. Cold Spring Press, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.