Skinner, B. J., & Porter, S. C. (1992). The dynamic earth: An introduction to physical geology (2nd ed.). John Wiley & Sons.
Chicago-čujuhus (17. p.)Skinner, Brian J., juo Stephen C. Porter. The Dynamic Earth: An Introduction to Physical Geology. 2nd ed. New York: John Wiley & Sons, 1992.
MLA-čujuhus (9. p.)Skinner, Brian J., juo Stephen C. Porter. The Dynamic Earth: An Introduction to Physical Geology. 2nd ed. John Wiley & Sons, 1992.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.