Spiegel Murray R & Schiller John. Probability and statistics. McGrawHill.
Cita Chicago (17th ed.)Spiegel Murray R i Schiller John. Probability and Statistics. Chennai: McGrawHill.
Cita MLA (9th ed.)Spiegel Murray R i Schiller John. Probability and Statistics. McGrawHill.
Atenció: Aquestes cites poden no estar 100% correctes.