Fox-Davies, A. C., Brooke-Little, J. P., & Díaz-Guerra, E. (1991). Diseños de heráldica. Editorial Libsa.
Chicago Style (17th ed.) CitationFox-Davies, Arthur Charles, John Philip Brooke-Little, and Eduardo Díaz-Guerra. Diseños De Heráldica. Madrid: Editorial Libsa, 1991.
MLA (9th ed.) CitationFox-Davies, Arthur Charles, et al. Diseños De Heráldica. Editorial Libsa, 1991.
Warning: These citations may not always be 100% accurate.