Hamblin, W. (1980). Physical geology. Burgess.
Chicago-čujuhus (17. p.)Hamblin, W.K. Physical Geology. Minneapolis: Burgess, 1980.
MLA-čujuhus (9. p.)Hamblin, W.K. Physical Geology. Burgess, 1980.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.