Cita APA (7a ed.)

Olsen, K. S. (2001). LNG: Liquified natural gas. [s.n.].

Cita Chicago Style (17a ed.)

Olsen, Knut Stangebye. LNG: Liquified Natural Gas. [S.l.]: [s.n.], 2001.

Cita MLA (9a ed.)

Olsen, Knut Stangebye. LNG: Liquified Natural Gas. [s.n.], 2001.