Cita APA (7th ed.)
Goodman, R. E. (1989). Introduction to rock mechanics (2nd ed.). Wiley.
Cita Chicago (17th ed.)
Goodman, Richard E. Introduction to Rock Mechanics. 2nd ed. New York: Wiley, 1989.
Cita MLA (9th ed.)
Goodman, Richard E. Introduction to Rock Mechanics. 2nd ed. Wiley, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.