Gaya APA

ASFAHL, C, R., RIESKE, D, W. (2010). Industrial Safety and Health Management 6ed (6). New York: Pearson Educations Inc..

Gaya MLA

ASFAHL, C, Ray., RIESKE, David, W. "Industrial Safety and Health Management 6ed". 6 New York: Pearson Educations Inc., 2010. Printed.