@misc{ enwiki:1077315777, author = "{Wikipedia contributors}", title = "Joseph O. Fletcher --- {Wikipedia}{,} The Free Encyclopedia", year = "2022", url = "https://en.wikipedia.org/w/index.php?title=Joseph_O._Fletcher&oldid=1077315777", note = "[Online; accessed 27-June-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:1077315777, author = "{Wikipedia contributors}", title = "Joseph O. Fletcher --- {Wikipedia}{,} The Free Encyclopedia", year = "2022", howpublished = "\url{https://en.wikipedia.org/w/index.php?title=Joseph_O._Fletcher&oldid=1077315777}", note = "[Online; accessed 27-June-2024]" }