APA (7th ed.) Citation

Hawkins, R., Campbell, D., Mas, L., Allen, R., Lyon, N., Fahy, F., . . . Cryer, R. (2012). LETTERS. New Scientist, 213(2856), 30.

Chicago Style (17th ed.) Citation

Hawkins, Ronnie, et al. "LETTERS." New Scientist 213, no. 2856 (2012): 30.

MLA (9th ed.) Citation

Hawkins, Ronnie, et al. "LETTERS." New Scientist, vol. 213, no. 2856, 2012, p. 30.