APA (7th ed.) Citation

STEPHENS RYAN K. (2008). SAMS TEACH YOURSELF SQL IN 21 DAYS. TECHMEDIA.

Chicago Style (17th ed.) Citation

STEPHENS RYAN K. SAMS TEACH YOURSELF SQL IN 21 DAYS. NEW DELHI: TECHMEDIA, 2008.

MLA (9th ed.) Citation

STEPHENS RYAN K. SAMS TEACH YOURSELF SQL IN 21 DAYS. TECHMEDIA, 2008.

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