Dyfyniad APA

Hornby, J. (1896). A text book of gas manufacture for students. G. Bell & Son.

Dyfyniad Arddull Chicago

Hornby, John. A Text Book of Gas Manufacture for Students. London: G. Bell & Son, 1896.

Dyfyniad MLA

Hornby, John. A Text Book of Gas Manufacture for Students. G. Bell & Son, 1896.

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