Barbeau, E. J. (2003). Pell' s equation. Springer- verlag.
Chicago Edition CitationBarbeau, Edward J. Pell' S Equation. New Yorl: Springer- verlag, 2003.
MLA Edition CitationBarbeau, Edward J. Pell' S Equation. Springer- verlag, 2003.
Warning: These citations may not always be 100% accurate.