APA (7th ed.) Citation

Davis, G. W., & Harrell, B. (1991). Gas tungsten arc welding [. Creative Educational Video.

Chicago Style (17th ed.) Citation

Davis, G. W., and Billy Harrell. Gas Tungsten Arc Welding [. Texas: Creative Educational Video, 1991.

MLA (9th ed.) Citation

Davis, G. W., and Billy Harrell. Gas Tungsten Arc Welding [. Creative Educational Video, 1991.