ALA? : the auxiliary cavalry units of the pre-Diocletianic imperial Roman army /
Spaul, J. E. H.
Cichorius, Conrad.
Andover : Nectoreca Press,
1994.
'A revision and updating of the article written by Conrad Cichorius and originally published in part 1 of Band 1 of Realencyclopädie der classischen Altertumswissenschaft, 1893'