@misc{ enwiki:1220771259, author = "{Wikipedia contributors}", title = "Optional Protocol on the Sale of Children, Child Prostitution and Child Pornography --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", url = "https://en.wikipedia.org/w/index.php?title=Optional_Protocol_on_the_Sale_of_Children,_Child_Prostitution_and_Child_Pornography&oldid=1220771259", note = "[Online; accessed 14-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:1220771259, author = "{Wikipedia contributors}", title = "Optional Protocol on the Sale of Children, Child Prostitution and Child Pornography --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", howpublished = "\url{https://en.wikipedia.org/w/index.php?title=Optional_Protocol_on_the_Sale_of_Children,_Child_Prostitution_and_Child_Pornography&oldid=1220771259}", note = "[Online; accessed 14-July-2024]" }