Put, A. a. d. (1910). The Aragonese Double Crown & the Borja or Borgia device with notes upon the bearing of such insignia in the fourteenth and fifteenth centuries. Quaritch.

Put, Albert an der. The Aragonese Double Crown & the Borja or Borgia Device with Notes upon the Bearing of Such Insignia in the Fourteenth and Fifteenth Centuries. London: Quaritch, 1910.

Put, Albert an der. The Aragonese Double Crown & the Borja or Borgia Device with Notes upon the Bearing of Such Insignia in the Fourteenth and Fifteenth Centuries. Quaritch, 1910.