APA (7th ed.) Citation

Lee, S. L. (2002). On the orientation numbers of graphs.

Chicago Style (17th ed.) Citation

Lee, Siew Lin. On the Orientation Numbers of Graphs. 2002.

MLA (8th ed.) Citation

Lee, Siew Lin. On the Orientation Numbers of Graphs. 2002.

Warning: These citations may not always be 100% accurate.