APA (7e ed.) Bronvermelding

Não informado. (2009). International Gas Engineering and Management. Institution of Gas Engineers.

Chicago (17e ed.) Bronvermelding

Não informado. International Gas Engineering and Management. London: Institution of Gas Engineers, 2009.

MLA (8e ed.) Bronvermelding

Não informado. International Gas Engineering and Management. Institution of Gas Engineers, 2009.

Let op: Deze citaties zijn niet altijd 100% accuraat.