000 2004 003 PGUSA 008 991201s1999||||xxu|||||s|||||000 | eng d 040 PGUSA eng 042 dc 050 4 PZ 100 1 Butler, Ellis Parker 245 10 Pigs is Pigs [electronic resource] / by Ellis Parker Butler 260 Project Gutenberg, 1999 500 Project Gutenberg 506 Freely available. 516 Electronic text 653 0 Children's literature 830 0 Project Gutenberg 2004 856 40 http://www.gutenberg.org/etext/2004 856 42 http://www.gutenberg.org/license Rights