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 Lincolnshire:

"

Mechanisation around 1900 greatly diminished the number of workers required to operate the county's relatively large farms, and the proportion of workers in the agricultural sector dropped substantially during this period.[citation needed] Several major engineering companies developed in Lincoln, Gainsborough and Grantham to support those changes. Among these was Fosters of Lincoln, which built the first tank, and Richard Hornsby & Sons of Grantham. Most such industrial companies left during late 20th-century restructuring.[citation needed]