Draffin, N. (2009). An introduction to fuel analysis. Petrospot.
Chicago-čujuhus (17. p.)Draffin, Nigel. An Introduction to Fuel Analysis. Adderbury: Petrospot, 2009.
MLA-čujuhus (9. p.)Draffin, Nigel. An Introduction to Fuel Analysis. Petrospot, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.