Não informado. (1969). Diesel and gas turbine progress worldwide. Diesel & Gas Turbine Publications.
Chicago-viite (17. p.)Não informado. Diesel and Gas Turbine Progress Worldwide. Brookfield, Wis: Diesel & Gas Turbine Publications, 1969.
MLA-viite (8. p.)Não informado. Diesel and Gas Turbine Progress Worldwide. Diesel & Gas Turbine Publications, 1969.
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