APA (7th ed.) Citation

Stephenson, P., & Hartwig, G. (1992). SQL: Self-teaching guide. John Wiley.

Chicago Style (17th ed.) Citation

Stephenson, Peter, and Glenn Hartwig. SQL: Self-teaching Guide. New York: John Wiley, 1992.

MLA (9th ed.) Citation

Stephenson, Peter, and Glenn Hartwig. SQL: Self-teaching Guide. John Wiley, 1992.