Cita APA (7th ed.)

Marcos, F. E. (1968). Towards a new ecumenism. Bureau of Printing.

Cita Chicago (17th ed.)

Marcos, Ferdinand E. Towards a New Ecumenism. Manila: Bureau of Printing, 1968.

Cita MLA (9th ed.)

Marcos, Ferdinand E. Towards a New Ecumenism. Bureau of Printing, 1968.