APA Citation

John, W. R. (1950). Minerals in industry. Paris: Penguin Books.

Trích dẫn kiểu Chicago

John, W. R. Minerals in Industry. Paris: Penguin Books, 1950.

MLA Citation

John, W. R. Minerals in Industry. Paris: Penguin Books, 1950.

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.