Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Feminist separatism:

"

Cell 16, which was founded in 1968 by Roxanne Dunbar, has been cited as the first organization to advance the concept of separatist feminism.[2][3][4] Echols argued that Cell 16 helped establish the theoretical foundations of lesbian separatism,[4] and is an example of heterosexual feminist separatism, as the group never advocated lesbianism as a political strategy.[citation needed]