APA Style
Hudson, J. A.. (1989).
Rock Mechanics Principles in Engineering Practice .
London:
Butterworths.
Chicago Style
Hudson, J. A..
Rock Mechanics Principles in Engineering Practice.
London:
Butterworths,
1989.
Text.
MLA Style
Hudson, J. A..
Rock Mechanics Principles in Engineering Practice.
London:
Butterworths,
1989.
Text.
Turabian Style
Hudson, J. A..
Rock Mechanics Principles in Engineering Practice.
London:
Butterworths,
1989.
Print.