Gaya APA
Asfahl, C. Ray. (2010).
INDUSTRIAL SAFETY and HEALTH MANAGEMENT (6).
s.l:
Pearson Education Inc..
Gaya Chicago
Asfahl, C. Ray.
INDUSTRIAL SAFETY and HEALTH MANAGEMENT.
6
s.l:
Pearson Education Inc.,
2010.
Text.
Gaya MLA
Asfahl, C. Ray.
INDUSTRIAL SAFETY and HEALTH MANAGEMENT.
6
s.l:
Pearson Education Inc.,
2010.
Text.
Gaya Turabian
Asfahl, C. Ray.
INDUSTRIAL SAFETY and HEALTH MANAGEMENT.
6
s.l:
Pearson Education Inc.,
2010.
Print.