Birch, T. (1964). Maps: Topographical and statistical (2nd ed.). Clarendon Press.
Chicago-čujuhus (17. p.)Birch, T.W. Maps: Topographical and Statistical. 2nd ed. Oxford: Clarendon Press, 1964.
MLA-čujuhus (9. p.)Birch, T.W. Maps: Topographical and Statistical. 2nd ed. Clarendon Press, 1964.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.