Jackson, R. H. (1986). World regional geography: Issues for today (2ª ed.). John Wiley and Sons.
Chicago-čujuhus (17. p.)Jackson, Richard H. World Regional Geography: Issues for Today. 2ª ed. John Wiley and Sons, 1986.
MLA-čujuhus (9. p.)Jackson, Richard H. World Regional Geography: Issues for Today. 2ª ed. John Wiley and Sons, 1986.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.