@misc{ enwiki:1166801755, author = "{Wikipedia contributors}", title = "Vertical boiler with horizontal fire-tubes --- {Wikipedia}{,} The Free Encyclopedia", year = "2023", url = "https://en.wikipedia.org/w/index.php?title=Vertical_boiler_with_horizontal_fire-tubes&oldid=1166801755", note = "[Online; accessed 15-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:1166801755, author = "{Wikipedia contributors}", title = "Vertical boiler with horizontal fire-tubes --- {Wikipedia}{,} The Free Encyclopedia", year = "2023", howpublished = "\url{https://en.wikipedia.org/w/index.php?title=Vertical_boiler_with_horizontal_fire-tubes&oldid=1166801755}", note = "[Online; accessed 15-July-2024]" }