Marcos, F. E. (1968). Towards a new ecumenism. Bureau of Printing.
芝加哥风格引文Marcos, Ferdinand E. Towards a New Ecumenism. Manila: Bureau of Printing, 1968.
MLA引文Marcos, Ferdinand E. Towards a New Ecumenism. Bureau of Printing, 1968.
警告：这些引文格式不一定是100％准确.