NCP bulletin. The Center.
芝加哥风格引文NCP Bulletin. Makati, Metro Manila: The Center.
MLA引文NCP Bulletin. The Center.
警告：这些引文格式不一定是100％准确.
APA引文
NCP bulletin. The Center.
芝加哥风格引文NCP Bulletin. Makati, Metro Manila: The Center.
MLA引文NCP Bulletin. The Center.