The polar regions and the USGCRP, article, June 1, 1997; (https://digital.library.unt.edu/ark:/67531/metadc692957/m1/1/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .
The polar regions and the USGCRP, article, June 1, 1997; (https://digital.library.unt.edu/ark:/67531/metadc692957/m1/1/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .