English operator: Panoramio described at URL: https://web.archive.org/web/20161102153520/http://www.panoramio.com/photo/114376447...
English operator: Panoramio described at URL: https://web.archive.org/web/20161013005343/http://www.panoramio.com/photo/11291274...
States cc-by-2.0 PSM V02 D605 Cross section of dried lumber 2r.jpg *original:Unknown authorUnknown author in Popular Science Monthly Volume 2 *derivative...