Gaya APA
Weilberg, P., Graf, J, R.
(2010).
SQL the complete reference
(
Ed. III)
.
New York:
Mc Graw-Hill.
Gaya MLA
Weilberg, Paul., Graf, James, R..
"SQL the complete reference".
Ed. III
New York:
Mc Graw-Hill,
2010.
Text.