User:Erat616/sandbox

@misc{ wiki:xxx, author = "Wikibooks", title = "Introduction to Information Technology/Relational Databases --- Wikibooks{,} The Free Textbook Project", year = "2017", url = "\url{https://en.wikibooks.org/w/index.php?title=Introduction_to_Information_Technology/Relational_Databases&oldid=3177544}", note = "[Online; accessed 21-January-2019]"