Cita APA (7th ed.)

(1987). Clean coal technology: Programmes and issues. OCDE.

Cita Chicago (17th ed.)

Clean Coal Technology: Programmes and Issues. paris: OCDE, 1987.

Cita MLA (9th ed.)

Clean Coal Technology: Programmes and Issues. OCDE, 1987.

Atenció: Aquestes cites poden no estar 100% correctes.