Villegas, B. M. (1990). Towards a well-rounded university specialization. Manila Bulletin.
芝加哥风格引文Villegas, Bernardo M. "Towards a Well-rounded University Specialization." Manila Bulletin 1990.
MLA引文Villegas, Bernardo M. "Towards a Well-rounded University Specialization." Manila Bulletin, 1990.
警告：这些引文格式不一定是100％准确.