APA (7th ed.) Citation

Allison, J., Armstrong, R., Juhasz, T., Jayne, L., Nielson, N., Pierce, E., . . . Van Andel, N. (2008). Letters. Natural Health, 38(6), 12.

Chicago Style (17th ed.) Citation

Allison, Jennifer, et al. "Letters." Natural Health 38, no. 6 (2008): 12.

MLA (9th ed.) Citation

Allison, Jennifer, et al. "Letters." Natural Health, vol. 38, no. 6, 2008, p. 12.