APA (7e ed.) Bronvermelding

Philippines. Department of Labor. (1972). The Department of Labor: 1966 to 1972. s.n.].

Chicago (17e ed.) Bronvermelding

Philippines. Department of Labor. The Department of Labor: 1966 to 1972. [s.l: s.n.], 1972.

MLA (9e ed.) Bronvermelding

Philippines. Department of Labor. The Department of Labor: 1966 to 1972. s.n.], 1972.

Let op: Deze citaties zijn niet altijd 100% accuraat.