Gaya APA
Asfahl, C. Ray. (2004).
Industrial safety and health management / C. Ray Asfahl (Ed.ke-5).
:
New Jersey : Prentice Hall.
Gaya Chicago
Asfahl, C. Ray.
Industrial safety and health management / C. Ray Asfahl.
Ed.ke-5
:
New Jersey : Prentice Hall,
2004.
Buku.
Gaya MLA
Asfahl, C. Ray.
Industrial safety and health management / C. Ray Asfahl.
Ed.ke-5
:
New Jersey : Prentice Hall,
2004.
Buku.
Gaya Turabian
Asfahl, C. Ray.
Industrial safety and health management / C. Ray Asfahl.
Ed.ke-5
:
New Jersey : Prentice Hall,
2004.
Buku.