Cita APA (7a ed.)

Alexander, R., & Hellman, D. (1991). Welding: The fundamentals of welding, cutting, brazing, soldering, and surfacing of metals (1st edition.). John Deere.

Cita Chicago Style (17a ed.)

Alexander, Richard, y Darren Hellman. Welding: The Fundamentals of Welding, Cutting, Brazing, Soldering, and Surfacing of Metals. 1st edition. Illinois: John Deere, 1991.

Cita MLA (8a ed.)

Alexander, Richard, y Darren Hellman. Welding: The Fundamentals of Welding, Cutting, Brazing, Soldering, and Surfacing of Metals. 1st edition. John Deere, 1991.