APA (7th ed.) Citation

Celko, J. (2004). Joe Celko's Trees and hierarchies in SQL for smarties. Morgan Kaufmann.

Chicago Style (17th ed.) Citation

Celko, Joe. Joe Celko's Trees and Hierarchies in SQL for Smarties. Amsterdam ; Boston: Morgan Kaufmann, 2004.

MLA (8th ed.) Citation

Celko, Joe. Joe Celko's Trees and Hierarchies in SQL for Smarties. Morgan Kaufmann, 2004.