APA (7th ed.) Zitazioa

VAN KREVELEN, D. (1961). Coal: Typology chemistry-physics. Elsevier.

Chicago Style (17th ed.) Zitazioa

VAN KREVELEN, D.W. Coal: Typology Chemistry-physics. Amsterdam: Elsevier, 1961.

MLA (9th ed.) Zitazioa

VAN KREVELEN, D.W. Coal: Typology Chemistry-physics. Elsevier, 1961.