Cheng, C. C. T. (2000). Three problems in graph labeling. Bell & Howell Information and Learning Company.
芝加哥风格引文Cheng, Christine Calynn Tan. Three Problems in Graph Labeling. Ann Arbor Michigan: Bell & Howell Information and Learning Company, 2000.
MLA引文Cheng, Christine Calynn Tan. Three Problems in Graph Labeling. Bell & Howell Information and Learning Company, 2000.
警告：这些引文格式不一定是100％准确.