Cita APA (7th ed.)
Hartman, H. L. (2002). Introductory Mining Engineering (2nd ed.). John Wiley & Sons.
Cita Chicago (17th ed.)
Hartman, Howard L. Introductory Mining Engineering. 2nd ed. New e Jersey: John Wiley & Sons, 2002.
Cita MLA (9th ed.)
Hartman, Howard L. Introductory Mining Engineering. 2nd ed. John Wiley & Sons, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.