Willockx, F. 273/00005: Briefwisseling 17/12/1998 - 31/5/1999. Met index.
芝加哥风格引文Willockx, Freddy. 273/00005: Briefwisseling 17/12/1998 - 31/5/1999. Met Index.
MLA引文Willockx, Freddy. 273/00005: Briefwisseling 17/12/1998 - 31/5/1999. Met Index.
警告：这些引文格式不一定是100％准确.