Jerrard, H. G., & McNeill, D. B. (1992). Dictionary of scientific units: Including dimensionless numbers and scales (6a. ed.). Chapman and Hall.
Cita Chicago (17th ed.)Jerrard, H. G., i D. B. McNeill. Dictionary of Scientific Units: Including Dimensionless Numbers and Scales. 6a. ed. Londres: Chapman and Hall, 1992.
Cita MLA (9th ed.)Jerrard, H. G., i D. B. McNeill. Dictionary of Scientific Units: Including Dimensionless Numbers and Scales. 6a. ed. Chapman and Hall, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.