Gerling, H. (2006). All about machine tools (2nd ed.). New Age.
Chicago Edition CitationGerling, Heinrich. All About Machine Tools. 2nd ed. New Delhi: New Age, 2006.
Cita MLAGerling, Heinrich. All About Machine Tools. 2nd ed. New Age, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.