Orig, T. S. (1997). UPLB professor honored by IOWA State University alumni. Manila Bulletin.
芝加哥风格引文Orig, Thor S. "UPLB Professor Honored by IOWA State University Alumni." Manila Bulletin 1997.
MLA引文Orig, Thor S. "UPLB Professor Honored by IOWA State University Alumni." Manila Bulletin, 1997.
警告：这些引文格式不一定是100％准确.