Lua APA (7ú heag.)
Speight James G. (2015). Handbook of Coal Analysis (2nd ed.). John Willey.
Lua i Stíl Chicago (17ú heag.)
Speight James G. Handbook of Coal Analysis. 2nd ed. New Jersey: John Willey, 2015.
Lua MLA (9ú heag.)
Speight James G. Handbook of Coal Analysis. 2nd ed. John Willey, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.