APA (7th ed.) Citation

Celko, J. (2012). Joe Celko's trees and hierarchies in SQL for smarties (2nd ed.). Morgan Kaufmann.

Chicago Style (17th ed.) Citation

Celko, Joe. Joe Celko's Trees and Hierarchies in SQL for Smarties. 2nd ed. Waltham, MA: Morgan Kaufmann, 2012.

MLA (9th ed.) Citation

Celko, Joe. Joe Celko's Trees and Hierarchies in SQL for Smarties. 2nd ed. Morgan Kaufmann, 2012.

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