Cita APA (7th ed.)
Speight James G. (2015). Handbook of Coal Analysis (2nd ed.). John Willey.
Cita Chicago (17th ed.)
Speight James G. Handbook of Coal Analysis. 2nd ed. New Jersey: John Willey, 2015.
Cita MLA (9th ed.)
Speight James G. Handbook of Coal Analysis. 2nd ed. John Willey, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.