@misc{ enwiki:1218188153, author = "{Wikipedia contributors}", title = "2004 Sri Lankan provincial council elections --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", url = "https://en.wikipedia.org/w/index.php?title=2004_Sri_Lankan_provincial_council_elections&oldid=1218188153", 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:1218188153, author = "{Wikipedia contributors}", title = "2004 Sri Lankan provincial council elections --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", howpublished = "\url{https://en.wikipedia.org/w/index.php?title=2004_Sri_Lankan_provincial_council_elections&oldid=1218188153}", note = "[Online; accessed 9-July-2024]" }