div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: · introduction to the aquatic insects of North America 3rd ed Dubuque: KendallHunt Publishing Company Thorp J and A Covich 2001 Ecology and classification of North American src=https:reader030vdocumentsusreader030viewer20220401015ecabd7e5f7e460fb46d8cebhtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: · introduction to the aquatic insects of North America 3rd ed Dubuque: KendallHunt Publishing Company Thorp J and A Covich 2001 Ecology and classification of North American src=https:reader030vdocumentsusreader030viewer20220401015ecabd7e5f7e460fb46d8cebhtml5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 3button div class=ts-image amp-img class=ts-thumb alt=Page 3: · introduction to the aquatic insects of North America 3rd ed Dubuque: KendallHunt Publishing Company Thorp J and A Covich 2001 Ecology and classification of North American src=https:reader030vdocumentsusreader030viewer20220401015ecabd7e5f7e460fb46d8cebhtml5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 4button div class=ts-image amp-img class=ts-thumb alt=Page 4: · introduction to the aquatic insects of North America 3rd ed Dubuque: KendallHunt Publishing Company Thorp J and A Covich 2001 Ecology and classification of North American src=https:reader030vdocumentsusreader030viewer20220401015ecabd7e5f7e460fb46d8cebhtml5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdiv