Dyfyniad APA
Seddon, D. (2010). Petrochemical economics: Technology selection in a carbon constrained world. Imperial College Press.
Dyfyniad Arddull Chicago
Seddon, Duncan. Petrochemical Economics: Technology Selection in a Carbon Constrained World. London: Imperial College Press, 2010.
Dyfyniad MLA
Seddon, Duncan. Petrochemical Economics: Technology Selection in a Carbon Constrained World. Imperial College Press, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.