div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: Harvard University · Please join the World-Wide Human Geography Data WWHGD Working Group and the Center for Geographic Analysis at Harvard University for our Geographic Perspectives src=https:reader033vdocumentinreader033viewer20220501115f485bcf81f71a6e0240b47fhtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdiv