Results of 1972 Michigan Proposal B by county. Data from <a rel="nofollow" class="external free" href="https://rtl.org/wp-content/uploads/2018/11/Prop_B_statistics.pdf">https://rtl.org/wp-content/uploads/2018/11/Prop_B_statistics.pdf</a>.
<a href="//commons.wikimedia.org/wiki/User:Elli" title="User:Elli">Elli</a>
<span class="int-own-work" lang="en">Own work</span>