000 50 003 PGUSA 008 930101s1993||||xxu|||||s|||||000 | eng d 040 PGUSA eng 042 dc 050 4 QA 100 1 Hemphill, Scott 245 10 Pi [electronic resource] / by Scott Hemphill 260 Project Gutenberg, 1993 500 Project Gutenberg 506 Freely available. 516 Electronic text 653 0 Mathematics 830 0 Project Gutenberg 50 856 40 http://www.gutenberg.org/etext/50 856 42 http://www.gutenberg.org/license Rights