Roman, S. (2005). The Umbral Calculus. Dover.
Chicago Style (17th ed.) CitationRoman, Steven. The Umbral Calculus. Mineocla, N.Y.: Dover, 2005.
MLA (9th ed.) CitationRoman, Steven. The Umbral Calculus. Dover, 2005.
Warning: These citations may not always be 100% accurate.