Reference Books
The Complete Bladesmith
By Jim Hrisoulas
The Master Bladesmith
By Jim Hrisoulas
Techniques of medieval Armour reproduction
By Brian R. Price
Records of the Medieval Sword
By Ewart Oakshott
The Archaeology of Weapons
By Ewart Oakshott
The Sword in the Age of Chivalry
By Ewart Oakshott
Swords of the Viking Age
By Ian Peirce and Ewart Oakshott
Osprey Reference Books
Osprey books' Warrior, Elite and Men-at-Arms series' are excellent references for the production of replica Arms and Armour. They contain artwork, photographs and history in great detail.
The Warrior Series:
Celtic Warrior: 300 BC - AD 100
The Norman Knight, 950-1204 AD
Knight Hospitallier: 1100-1306
English Medieval Knight 15th Century