Heath, Ian.
Armies of the Dark Ages, 600-1066: organisation, tactics, dress and weapons : Byzantine, Sub-Roman, Pictish ... and Spanish armies /
Ian Heath 
. - [Goring-by-Sea, Sussex] : REG Games Ltd.,  Wargames Research Group,  Heritage Models, Inc.,  1976 
. - 132 p.  ill., map.  26 cm.