Twyman, F., & Allsopp, C. B. (1934). The Practice of absorption spectrophotometry with Hilger instruments: An introduction to the theory of the subject, and guide to the technique of absortion measurement in the visible, ultra-violet, and infra-red regions of the spectrum (2nd ed.). Adam Hilger.
Cita Chicago Style (17a ed.)Twyman, F., y Cecil Benjamin Allsopp. The Practice of Absorption Spectrophotometry with Hilger Instruments: An Introduction to the Theory of the Subject, and Guide to the Technique of Absortion Measurement in the Visible, Ultra-violet, and Infra-red Regions of the Spectrum. 2nd ed. London: Adam Hilger, 1934.
Cita MLA (9a ed.)Twyman, F., y Cecil Benjamin Allsopp. The Practice of Absorption Spectrophotometry with Hilger Instruments: An Introduction to the Theory of the Subject, and Guide to the Technique of Absortion Measurement in the Visible, Ultra-violet, and Infra-red Regions of the Spectrum. 2nd ed. Adam Hilger, 1934.
