(2017). Earth: An introduction to physical geology. Pearson Education.
Chicago-čujuhus (17. p.)Earth: An Introduction to Physical Geology. Pearson Education, 2017.
MLA-čujuhus (9. p.)Earth: An Introduction to Physical Geology. Pearson Education, 2017.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.