Unstead, P. J. (1965). Questions and answers on automobile engines. Book centre pvt.ltd.
Chicago Edition CitationUnstead, P J. Questions and Answers on Automobile Engines. Bombay: Book centre pvt.ltd, 1965.
Deismireacht MLAUnstead, P J. Questions and Answers on Automobile Engines. Book centre pvt.ltd, 1965.
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