Strichzeichnung eines <a href="https://en.wikipedia.org/wiki/de:Thermometer" class="extiw" title="w:de:Thermometer">Thermometers</a> (deutsche Version)
<a href="https://en.wikipedia.org/wiki/Pearson_Scott_Foresman" class="extiw" title="en:Pearson Scott Foresman">Pearson Scott Foresman</a>
Archives of <a href="https://en.wikipedia.org/wiki/Pearson_Scott_Foresman" class="extiw" title="en:Pearson Scott Foresman">Pearson Scott Foresman</a>, donated to the <a href="https://en.wikipedia.org/wiki/Wikimedia_Foundation" class="extiw" title="en:Wikimedia Foundation">Wikimedia Foundation</a>