(1995). Job grading standard: Instrument mechanic, 3359 / United States Office of Personnel Management, Personnel Systems and Oversight Group, Office of Classification.
Citazione stile Chigago Style (17a edizione)Job Grading Standard: Instrument Mechanic, 3359 / United States Office of Personnel Management, Personnel Systems and Oversight Group, Office of Classification. 1995.
Citatione MLA (9a ed.)Job Grading Standard: Instrument Mechanic, 3359 / United States Office of Personnel Management, Personnel Systems and Oversight Group, Office of Classification. 1995.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.