Burn, A R (Juni 1951): «Review of The British Section of the Ravenna Cosmography». The Classical Review. 1 (2): 121. doi:10.1017/S0009840X00174852. S2CID 162817548.
Burn, A R (Juni 1951): «Review of The British Section of the Ravenna Cosmography». The Classical Review. 1 (2): 121. doi:10.1017/S0009840X00174852. S2CID 162817548.