APA (7th ed.) Citation
Martyn, T., & Hartley, T. (1989). DB2/SQL. A profesional programmer's guide. McGraw-Hill.
Chicago Style (17th ed.) Citation
Martyn, Tim, and Tim Hartley. DB2/SQL. A Profesional Programmer's Guide. New York: McGraw-Hill, 1989.
MLA (9th ed.) Citation
Martyn, Tim, and Tim Hartley. DB2/SQL. A Profesional Programmer's Guide. McGraw-Hill, 1989.
Warning: These citations may not always be 100% accurate.