Cita APA (7th ed.)

Craig. (1990). GWAW welding: GMAW made simple. Reader Q & A.

Cita Chicago (17th ed.)

Craig. GWAW Welding: GMAW Made Simple. United States: Reader Q & A, 1990.

Cita MLA (8th ed.)

Craig. GWAW Welding: GMAW Made Simple. Reader Q & A, 1990.