APA (7e ed.) Bronvermelding
Friend, M. A., & Kohn, J. P. (2010). Fundamentals of occupational safety and health (5th ed.). Government Institutes.
Chicago (17e ed.) Bronvermelding
Friend, Mark A., en James P. Kohn. Fundamentals of Occupational Safety and Health. 5th ed. Lanham: Government Institutes, 2010.
MLA (9e ed.) Bronvermelding
Friend, Mark A., en James P. Kohn. Fundamentals of Occupational Safety and Health. 5th ed. Government Institutes, 2010.
Let op: Deze citaties zijn niet altijd 100% accuraat.