Helzer, S. C., Bertrand, C. A., Botsford, J. F., Morgan, D. W., & Parrish, L. H. (1986). Current practices and future trends in pre-employment skill requirements for welding technologists.
Chicago Style (17th ed.) CitationHelzer, Scott Clifford, C. A. Bertrand, J. F. Botsford, D. W. Morgan, and L. H. Parrish. Current Practices and Future Trends in Pre-employment Skill Requirements for Welding Technologists. 1986.
MLA (9th ed.) CitationHelzer, Scott Clifford, et al. Current Practices and Future Trends in Pre-employment Skill Requirements for Welding Technologists. 1986.
Warning: These citations may not always be 100% accurate.