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 Margaret Crosfield:

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

"

From 1906 to 1909, and again in 1911, geological surveys were conducted inside an area of seventy-two square miles their observations were published in Quarterly Journal of the Geological Society, volumes 52 (1896) and 81 (1925).[citation needed]