The historians' history of the world in twenty-five volumes, volume 04
CHAPTER LI. ALEXANDER INVADES ASIA
[b] GEORGE GROTE, _op. cit._
[c] J. G. DROYSEN, _op. cit._
[d] JURIEN DE LA GRAVIÉRE, _Les campagnes d’Alexandre_.
[e] ARRIAN, _op. cit._
[f] GEORGE GROTE, _op. cit._
[g] PTOLEMY LAGI, ARISTOBULUS, ANAXIMENES, and CALLISTHENES, as quoted by Arrian, Diodorus, etc.