ALEXANDER, J. W., & GIBSON, L. J. (1979). Economic geography.-- ed.2. Prentice Hall.
Chicago-čujuhus (17. p.)ALEXANDER, John W., juo Lay James GIBSON. Economic Geography.-- Ed.2. London: Prentice Hall, 1979.
MLA-čujuhus (9. p.)ALEXANDER, John W., juo Lay James GIBSON. Economic Geography.-- Ed.2. Prentice Hall, 1979.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.