APA (7th ed.) Citation

Smith, D., Litchfield, J., Daintree, D., Macdonald, H., Furedy, J., Robson, A., . . . Colebatch, H. (2011). Letters. Quadrant Magazine, 55(10), 2.

Chicago Style (17th ed.) Citation

Smith, David, James Litchfield, David Daintree, Hector Macdonald, John Furedy, Alan Robson, Mick Koster, M. Gordon, and Hal Colebatch. "Letters." Quadrant Magazine 55, no. 10 (2011): 2.

MLA (9th ed.) Citation

Smith, David, et al. "Letters." Quadrant Magazine, vol. 55, no. 10, 2011, p. 2.