Dyfyniad APA

World Gas Conference Nice, France, & International Gas Union. (1973). 12e Congrès mondial du gaz, Nice 73: [rapports] = 12th World Gas Conference, Nice 73 : [reports]. International Gas Union.

Dyfyniad Arddull Chicago

World Gas Conference Nice, France, and International Gas Union. 12e Congrès Mondial Du Gaz, Nice 73: [rapports] = 12th World Gas Conference, Nice 73 : [reports]. London: International Gas Union, 1973.

Dyfyniad MLA

World Gas Conference Nice, France, and International Gas Union. 12e Congrès Mondial Du Gaz, Nice 73: [rapports] = 12th World Gas Conference, Nice 73 : [reports]. International Gas Union, 1973.

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