Hemphill, S. (1990). The number Pi. Champaign, Ill.: Project Gutenberg.
Chicago Style CitationHemphill, Scott. The Number Pi. Champaign, Ill.: Project Gutenberg, 1990.
MLA CitationHemphill, Scott. The Number Pi. Champaign, Ill.: Project Gutenberg, 1990.
Warning: These citations may not always be 100% accurate.