Marshall, M. (2008). Positive polynomials and sums of squares. Providence, R.I.: American Mathematical Society.
Chicago Style aipamenaMarshall, Murray. Positive Polynomials and Sums of Squares. Providence, R.I.: American Mathematical Society, 2008.
MLA aipamenaMarshall, Murray. Positive Polynomials and Sums of Squares. Providence, R.I.: American Mathematical Society, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.