The Journal of the American Society of Safety Engineers. American Society of Safety Professionals (ASSP).
Chicago-viite (17. p.)The Journal of the American Society of Safety Engineers. American Society of Safety Professionals (ASSP).
MLA-viite (8. p.)The Journal of the American Society of Safety Engineers. American Society of Safety Professionals (ASSP).
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.