Crowell-Collier. Editores. Collier's Encyclopedia. Vol XII.
芝加哥风格引文Crowell-Collier. Editores. Collier's Encyclopedia. Vol XII. [s.l.] : Crowell-Collier.
MLA引文Crowell-Collier. Editores. Collier's Encyclopedia. Vol XII.
警告：这些引文格式不一定是100％准确.
APA引文