Παραπομπή APA

Heldt, P. M. (1956). High-speed combustion engines: Design, production, tests (16th edition of the gasoline motor.). Philadelphia: Chilton Co..

Παραπομπή Chicago Style

Heldt, P. M. High-speed Combustion Engines: Design, Production, Tests. 16th edition of the gasoline motor. Philadelphia: Chilton Co., 1956.

Παραπομπή MLA

Heldt, P. M. High-speed Combustion Engines: Design, Production, Tests. 16th edition of the gasoline motor. Philadelphia: Chilton Co., 1956.

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