@misc{ enwiki:884211621, author = "{Wikipedia contributors}", title = "French Quarter Mardi Gras costumes --- {Wikipedia}{,} The Free Encyclopedia", year = "2019", url = "https://en.wikipedia.org/w/index.php?title=French_Quarter_Mardi_Gras_costumes&oldid=884211621", note = "[Online; accessed 9-July-2024]" }
url
(\usepackage{url}
somewhere in the preamble), which tends to give much more nicely formatted web addresses, the following may be preferred:
@misc{ enwiki:884211621, author = "{Wikipedia contributors}", title = "French Quarter Mardi Gras costumes --- {Wikipedia}{,} The Free Encyclopedia", year = "2019", howpublished = "\url{https://en.wikipedia.org/w/index.php?title=French_Quarter_Mardi_Gras_costumes&oldid=884211621}", note = "[Online; accessed 9-July-2024]" }