APA-referens (7:e uppl.)
(2015). Introduction to Oil and Gas Operational Safety: Revision Guide for the NEBOSH Internatinal Technical Certificate in Oil and Gas Operational Safety. Routledge.
Chicago-referens (17:e uppl.)
Introduction to Oil and Gas Operational Safety: Revision Guide for the NEBOSH Internatinal Technical Certificate in Oil and Gas Operational Safety. New York: Routledge, 2015.
MLA-referens (9:e uppl.)
Introduction to Oil and Gas Operational Safety: Revision Guide for the NEBOSH Internatinal Technical Certificate in Oil and Gas Operational Safety. Routledge, 2015.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.