Dyfyniad APA

London), C. o. T. I. f. E. G. (. :., & Etherton, J. J. (1989). Documentation control in the energy industries/ [proceedings]. London: Inst. of Petroleum.

Dyfyniad Arddull Chicago

London), Conference of The Information for Energy Group (1988 :, and J J. Etherton. Documentation Control in the Energy Industries/ [proceedings]. London: Inst. of Petroleum, 1989.

Dyfyniad MLA

London), Conference of The Information for Energy Group (1988 :, and J J. Etherton. Documentation Control in the Energy Industries/ [proceedings]. London: Inst. of Petroleum, 1989.

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