APA (7th ed.) Citation

Merrick, J. E. (1930). Sound business practices for sheet metal contractors. Sheet Metal Worker., 21, 140.

Chicago Style (17th ed.) Citation

Merrick, J. E. "Sound Business Practices for Sheet Metal Contractors." Sheet Metal Worker. 21 (1930): 140.

MLA (9th ed.) Citation

Merrick, J. E. "Sound Business Practices for Sheet Metal Contractors." Sheet Metal Worker., vol. 21, 1930, p. 140.

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