Leet, L. D. (1982). Physical geology. Prentice-Hall.
Chicago-čujuhus (17. p.)Leet, L. Don. Physical Geology. Englewood Cliffs: Prentice-Hall, 1982.
MLA-čujuhus (9. p.)Leet, L. Don. Physical Geology. Prentice-Hall, 1982.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.