Philippines. Ministry of Public Works. (1979). Employee handbook. [s.n.].
Chicago Style aipamenaPhilippines. Ministry of Public Works. Employee Handbook. Port Area, Manila: [s.n.], 1979.
MLA aipamenaPhilippines. Ministry of Public Works. Employee Handbook. [s.n.], 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.