Citazione Stile APA (7a Edizione)
Spellman, F. R., & Bieber, R. M. (2009). Occupational safety and health simplified for the chemical industry. Government Institutes/Scarecrow Press.
Citazione stile Chigago Style (17a edizione)
Spellman, Frank R., e Revonna M. Bieber. Occupational Safety and Health Simplified for the Chemical Industry. Lanham, Md.: Government Institutes/Scarecrow Press, 2009.
Citatione MLA (9a ed.)
Spellman, Frank R., e Revonna M. Bieber. Occupational Safety and Health Simplified for the Chemical Industry. Government Institutes/Scarecrow Press, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.