APA (7th ed.) Citation

Howells, L. T. (1929). Metal cleaning goes scientific. Metal Industry., 27, 274.

Chicago Style (17th ed.) Citation

Howells, L. T. "Metal Cleaning Goes Scientific." Metal Industry. 27 (1929): 274.

MLA (9th ed.) Citation

Howells, L. T. "Metal Cleaning Goes Scientific." Metal Industry., vol. 27, 1929, p. 274.

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