Gaya APA

Skinner, B, J., C., I, P, S. (1992). the Dynamic earth an introduction to physical geology , second edition (ED 2). New York: John Wiley and Sons.

Gaya MLA

Skinner, Brian, J.., C., I., Porter,, Stephen. "the Dynamic earth an introduction to physical geology , second edition". ED 2 New York: John Wiley and Sons, 1992. Text.