Cita APA (7a ed.)
Harrison, J. P., & Hudson, J. (1997). Engineering rock mechanics: An introduction to the principles. Elsevier.
Cita Chicago Style (17a ed.)
Harrison, John P., y John Hudson. Engineering Rock Mechanics: An Introduction to the Principles. Oxford: Elsevier, 1997.
Cita MLA (9a ed.)
Harrison, John P., y John Hudson. Engineering Rock Mechanics: An Introduction to the Principles. Elsevier, 1997.
Precaución: Estas citas no son 100% exactas.