APA (7th ed.) Citation

PP, H. (2008). Invited commentary: The use of imperfect data -- compromise or compromising? American Journal of Epidemiology, 167(6), 641.

Chicago Style (17th ed.) Citation

PP, Howards. "Invited Commentary: The Use of Imperfect Data -- Compromise or Compromising?" American Journal of Epidemiology 167, no. 6 (2008): 641.

MLA (9th ed.) Citation

PP, Howards. "Invited Commentary: The Use of Imperfect Data -- Compromise or Compromising?" American Journal of Epidemiology, vol. 167, no. 6, 2008, p. 641.