Note 9 — Chapter I · FROM CHʽANG-GAN TO THE SANDY DESERT.
James Legge translation
Chang-yih is still the name of a district in Kan-chow department, Kan-sŭh. It is a long way north and west from Lan-chow, and not far from the Great Wall. Its king at this time was, probably, Twan-yeh of ‘the northern Leang.’