@misc{ enwiki:1220577750, author = "{Wikipedia contributors}", title = "State University of New York at Purchase --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", url = "https://en.wikipedia.org/w/index.php?title=State_University_of_New_York_at_Purchase&oldid=1220577750", note = "[Online; accessed 11-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:1220577750, author = "{Wikipedia contributors}", title = "State University of New York at Purchase --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", howpublished = "\url{https://en.wikipedia.org/w/index.php?title=State_University_of_New_York_at_Purchase&oldid=1220577750}", note = "[Online; accessed 11-July-2024]" }