00612cam a2200181 4500 417278152 TxAuBib 20190214120000.0 200213s2020||||||||||||||||||||||||eng|u 61398 Project Gutenberg PGUSA eng TxAuBib Hartwig, G, 1813-1880, (Georg.) The Polar World [Gutenberg] : A popular description of man and nature in the Arctic and Antarctic regions of the globe / G. Hartwig. Project Gutenberg, 2020. Public domain in the USA. Text. http://www.gutenberg.org/ebooks/61398 TXDIC