APA (7th ed.) Citation

Welch, R. L. (1926). Elements of sheet metal work. The Bruce publishing company.

Chicago Style (17th ed.) Citation

Welch, Robert Louis. Elements of Sheet Metal Work. Milwaukee, Wis.: The Bruce publishing company, 1926.

MLA (9th ed.) Citation

Welch, Robert Louis. Elements of Sheet Metal Work. The Bruce publishing company, 1926.

Warning: These citations may not always be 100% accurate.