Lee, C. L. (2004). On crossing numbers and removal numbers of graphs.
Chicago Style (17th ed.) CitationLee, Chan Lye. On Crossing Numbers and Removal Numbers of Graphs. 2004.
MLA引文Lee, Chan Lye. On Crossing Numbers and Removal Numbers of Graphs. 2004.
警告：這些引文格式不一定是100％准確.