APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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