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.
Chicagoスタイル(17版)引用形式World Gas Conference Nice, France, , International Gas Union. 12e Congrès Mondial Du Gaz, Nice 73: [rapports] = 12th World Gas Conference, Nice 73 : [reports]. London: International Gas Union, 1973.
MLA(8版)引用形式World Gas Conference Nice, France, , International Gas Union. 12e Congrès Mondial Du Gaz, Nice 73: [rapports] = 12th World Gas Conference, Nice 73 : [reports]. International Gas Union, 1973.
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