APA aipamena

Celko, J. (2007). Joe Celko's SQL puzzles and answers. Amsterdam: Epsevier.

Chicago Style aipamena

Celko, Joe. Joe Celko's SQL Puzzles and Answers. Amsterdam: Epsevier, 2007.

MLA aipamena

Celko, Joe. Joe Celko's SQL Puzzles and Answers. Amsterdam: Epsevier, 2007.