Project Gutenberg 2010-02-21 Public domain in the USA. 28 Duellman, William Edward 1930 2022 Duellman, William E. (William Edward) Descriptions of Two Species of Frogs, Genus Ptychohyla Studies of American Hylid Frogs, V Produced by Chris Curnow, Joseph Cooper, Diane Monico, and the Online Distributed Proofreading Team at https://www.pgdp.net en Frogs QH Text Animal Animals-Wild-Reptiles and Amphibians Browsing: Nature/Gardening/Animals Browsing: Science - Genetics/Biology/Evolution 49012 49018 2024-08-13T09:25:30.701882 2023-09-14T03:55:36.612784 text/html text/html 45427 2021-01-06T04:40:41 text/html; charset=iso-8859-1 177952 2021-01-06T04:40:41 text/html; charset=iso-8859-1 application/zip 249361 2024-08-13T09:25:34.256885 application/epub+zip 248100 2024-08-13T09:25:32.133873 application/epub+zip 81634 2024-08-13T09:25:31.211874 application/epub+zip 397704 2024-08-13T09:25:35.835857 application/x-mobipocket-ebook 389453 2024-08-13T09:25:33.626888 application/x-mobipocket-ebook 88648 2022-09-14T11:22:13.627766 application/x-mobipocket-ebook 41167 41043 2024-08-13T09:25:30.468871 2023-09-14T03:55:36.406784 text/plain; charset=us-ascii text/plain 41086 2021-01-06T04:40:41 text/plain; charset=iso-8859-1 14366 2021-01-06T04:40:41 text/plain; charset=iso-8859-1 application/zip 41077 2021-01-06T04:40:41 text/plain; charset=us-ascii 14340 2021-01-06T04:40:41 text/plain; charset=us-ascii application/zip 19724 2024-08-13T09:25:35.960863 application/rdf+xml 22594 2024-08-13T09:25:31.562866 image/jpeg 4701 2024-08-13T09:25:31.382887 image/jpeg 247264 2024-08-13T09:25:30.716885 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://www.gutenberg.org/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog