APA (7th ed.) Citation

Aranda Heredia, E. (1975). The energy crisis and the efficiency of tractors and farming machinery: Paper presented at the Assembly of the C.E.M.A., Madrid, 6th June 1975. [Comité européen de machinisme agricole?].

Chicago Style (17th ed.) Citation

Aranda Heredia, E. The Energy Crisis and the Efficiency of Tractors and Farming Machinery: Paper Presented at the Assembly of the C.E.M.A., Madrid, 6th June 1975. [Place of publication not identified]: [Comité européen de machinisme agricole?], 1975.

MLA (9th ed.) Citation

Aranda Heredia, E. The Energy Crisis and the Efficiency of Tractors and Farming Machinery: Paper Presented at the Assembly of the C.E.M.A., Madrid, 6th June 1975. [Comité européen de machinisme agricole?], 1975.