Lucey, T. (1996). Quantitative techniques (5th ed.). ELBS.
Cita Chicago (17th ed.)Lucey, T. Quantitative Techniques. 5th ed. London: ELBS, 1996.
Cita MLA (9th ed.)Lucey, T. Quantitative Techniques. 5th ed. ELBS, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.