de Anjou, Rene. King Rene's Tournament Book. (1460) trans. by Elizabeth Bennett, 1997

Neubecker, Ottfried. Heraldry: Symbols, Sources, and Meaning. McGraw-Hill, England:1976

Pine, L.G. The Story of Heraldry. Country Life Ltd., London:1953

Woodcock, Thomas and Robinson, John Martin. The Oxford Guide to Heraldry. Oxford niversity Press, Oxford:1988

Additional backround information obtained from Fox-Davies, 2 books I've forgotten but will add later when I find my notes, and Velde's