@book{189534,
	author = {American Petroleum Institute, API},
	title = {Subsurface barrier valves and related equipment},
	publisher = {American Petroleum Institute, API},
	year = {2013},
	address = {Washington},
	edition = {1st. ed.},
	note = {ISO 28781: 2010 (Modified), petroleum and natural gas industries- Drilling and production equipment- subsurface barrier valves and related equipment}
}