@book{41306,
	author = {Darley, H. C. H. and Gray, George Robert},
	title = {Composition and properties of drilling and completion fluids /},
	publisher = {Gulf Pub. Co., Book Division,},
	year = {c1988},
	address = {Houston :},
	edition = {5th ed.},
	note = {Rev. ed. of: Composition and properties of oil well drilling fluids / George Gray, H.C.H. Darley, Walter F. Rogers},
	url = {http://www.loc.gov/catdir/toc/els031/87031536.html}
}