RICHARD & LITTLE, S. (1979). The basic book of metal working. American Technical Pub.
Cita Chicago (17th ed.)RICHARD i Sherry LITTLE. The Basic Book of Metal Working. Illinois: American Technical Pub, 1979.
Cita MLA (9th ed.)RICHARD i Sherry LITTLE. The Basic Book of Metal Working. American Technical Pub, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.