Citazione Stile APA (7a Edizione)

U. S. Dept. of Labor. Office of Occupational Safety and the International Division & U. S. Dept. of Labor Safety Training Programs. (1967). Preventive maintenance for safety. Govt. Print. Off.

Citazione stile Chigago Style (17a edizione)

U. S. Dept. of Labor. Office of Occupational Safety and the International Division e U. S. Dept. of Labor Safety Training Programs. Preventive Maintenance for Safety. Washington, D. C: Govt. Print. Off, 1967.

Citatione MLA (9a ed.)

U. S. Dept. of Labor. Office of Occupational Safety and the International Division e U. S. Dept. of Labor Safety Training Programs. Preventive Maintenance for Safety. Govt. Print. Off, 1967.