APA (7e ed.) Bronvermelding

National Power Corporation. (1953). The Maria Cristina story: A dream, a reality. [s.n.].

Chicago (17e ed.) Bronvermelding

National Power Corporation. The Maria Cristina Story: A Dream, a Reality. Manila: [s.n.], 1953.

MLA (9e ed.) Bronvermelding

National Power Corporation. The Maria Cristina Story: A Dream, a Reality. [s.n.], 1953.