APA (7th ed.) Citation

Hudson, J. A. (1989). Rock mechanics principles in engineering practice / J. A. Hudson. Butterworths.

Chicago Style (17th ed.) Citation

Hudson, J. A. Rock Mechanics Principles in Engineering Practice / J. A. Hudson. London: Butterworths, 1989.

MLA (9th ed.) Citation

Hudson, J. A. Rock Mechanics Principles in Engineering Practice / J. A. Hudson. Butterworths, 1989.

Warning: These citations may not always be 100% accurate.