More Precious than Gold and Philately /

Míreanna comhchosúla

• Philately in the Hydraulic Works /
  de réir: Coll Carabias, César Subdirector General de Administración CONAGUA
• An Introduction To Stamp Collecting /
  de réir: Rod, Steven J.
• Postmarks of Mexico 1821 to 1883 /
  de réir: Tylor, Peter W.
• Treasury of Stamps : 1,200 rare and beautiful stamps in color /
  de réir: Lidman, David
• The error world : An affair with stamps /
  de réir: Garfield, Simon