Keats, J. (1996). Understanding maps (2nd ed.). Longman.
Chicago-čujuhus (17. p.)Keats, J.S. Understanding Maps. 2nd ed. London: Longman, 1996.
MLA-čujuhus (9. p.)Keats, J.S. Understanding Maps. 2nd ed. Longman, 1996.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.