Sablon:Gurney-Garstang:Geography
O. R. Gurney, J. Garstang (1959). „The geography of the Hittite empire”. British Institute of Archaeology at Ankara BIAA V.
- O. R. Gurney, J. Garstang (1960). „The Geography of the Hittite Empire”. Cuneiform Studies 14 (1), 43-48. o.