@book{80003,
	author = {Skonberg, Eric R.},
	title = {Pipeline design for installation by horizontal directional drilling /},
	publisher = {American Society of Civil Engneers,},
	year = {2014},
	series = {ASCE manuals and reports on engineering practice ;},
	address = {Reston, Virginia :},
	edition = {2nd ed.},
	note = {Includes index}
}