APA (7e ed.) Bronvermelding

Romulo, C. P. (1979). On the campaign trail. s.n.

Chicago (17e ed.) Bronvermelding

Romulo, Carlos Pena. On the Campaign Trail. [S.l: s.n, 1979.

MLA (9e ed.) Bronvermelding

Romulo, Carlos Pena. On the Campaign Trail. s.n, 1979.