@book{1922,
	author = {Hudson, John A. and Harrison, John P.},
	title = {Engineering rock mechanics, an introduction to the principles},
	publisher = {Pergamon,},
	year = {1997},
	address = {Amsterdam :},
	edition = {1 ed.},
	url = {https://uoh.overdrive.com/media/10120187?cid=290259}
}