APA (7th ed.) Citation

Cooke, J., Hitchner, B., Armstrong, K., Foley, D., Kantor, O., & Stephens, B. (2008). Letters TO THE EDITOR. Plumbing & Mechanical, 26(7), 6.

Chicago Style (17th ed.) Citation

Cooke, Jim, Bob Hitchner, Kimberly Armstrong, Dan Foley, Owen Kantor, and Barry Stephens. "Letters TO THE EDITOR." Plumbing & Mechanical 26, no. 7 (2008): 6.

MLA (9th ed.) Citation

Cooke, Jim, et al. "Letters TO THE EDITOR." Plumbing & Mechanical, vol. 26, no. 7, 2008, p. 6.