Gaya APA

International, A. (2009). Annual Book of ASTM Standards 2009. Section 5 Petroleum Products and Fossil Fuels. Volume 05.06 Gaseous Fuels : Coal and Coke. Include standardsf the . : ASTM Interbnational.

Gaya MLA

International, ASTM. "Annual Book of ASTM Standards 2009. Section 5 Petroleum Products and Fossil Fuels. Volume 05.06 Gaseous Fuels : Coal and Coke. Include standardsf the". : ASTM Interbnational, 2009. Buku.