Dyfyniad APA

Chapman, K. (1991). The international petrochemical industry: Evolution and location. B. Blackwell.

Dyfyniad Arddull Chicago

Chapman, Keith. The International Petrochemical Industry: Evolution and Location. Oxford, UK ; Cambridge, Mass., USA: B. Blackwell, 1991.

Dyfyniad MLA

Chapman, Keith. The International Petrochemical Industry: Evolution and Location. B. Blackwell, 1991.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.