APA

Downs D., French C., World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest) & French C.Development of alternative engines and their fuel requirements. : .

Chicago

Downs D, French C.C.J, World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest) and French C.C.J.Development of alternative engines and their fuel requirements. : .

Harvard

Downs D., French C., World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest) and French C.Development of alternative engines and their fuel requirements. : .

MLA

Downs D, French C.C.J, World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest) and French C.C.J.: . .