APA aipamena

Asfaw, A., Mark, C., & Pana-Cryan, R. (2012). Profitability and occupational injuries in U.S. underground coal mines(). Accid Anal Prev.

Chicago Style aipamena

Asfaw, Abay, Christopher Mark, and Regina Pana-Cryan. "Profitability and Occupational Injuries in U.S. Underground Coal Mines()." Accid Anal Prev 2012.

MLA aipamena

Asfaw, Abay, Christopher Mark, and Regina Pana-Cryan. "Profitability and Occupational Injuries in U.S. Underground Coal Mines()." Accid Anal Prev 2012.