University of the Philippines (Diliman). National Engineering Center. (1990). Preventive maintenance: Issues and insights. University of the Philippines.
Citazione stile Chigago Style (17a edizione)University of the Philippines (Diliman). National Engineering Center. Preventive Maintenance: Issues and Insights. Diliman, Quezon City: University of the Philippines, 1990.
Citatione MLA (9a ed.)University of the Philippines (Diliman). National Engineering Center. Preventive Maintenance: Issues and Insights. University of the Philippines, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.