The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}
George E. King Engineering, 5000 Oilfield Terms: A Glossary of Petroleum Engineering Terms, Abbreviations and Acronyms, US 2010. http://gekengineering.com/Downloads/Free_Downloads /Glossary_of_Petroleum_Engineering_Terms_25_August _2010.pdf, (Oil - Amer) {593}
University of Michigan-Flint, Environment Health and Safety Department, MSDS Glossary, University of Michigan-Ann Arbor, Michigan USA 2015, MSDS Terms Glossary is from the University of Oklahoma EHS Department website 2006. http://www.umflint.edu/sites/default/files/groups/ Environment__Health_and_Safety_Department/msds_glo ssary.pdf, (MSDS - Amer) {911}