References
- Acton W. I. Ann. occup. Hyg. 1967; 10: 143
- Bergman M. Arch. Otolaryng., Chic 1966; 84: 75
- British Standard 2497. The normal threshold of hearing for pure tones by earphone listening. B.S. Institution, London 1954
- British Standard 2980. Pure tone audiometry. B.S. Institution, London 1958
- Burns W. Noise and man. J. Murray. Appendix 1968; 1: 299
- Burns W. Trans. Ass. Industr. Med. Offrs. 1965; 15: 2
- Corso J. F. Arch. Otolaryng. 1963; 77: 385
- Coull J. R. Scottish Geog. Mag. 1966; 82: 154
- Hansen C. Arch. Otolaryng. 1968; 87: 119
- Hinchcliffe R. Acustica 1959; 9: 303
- Hinchcliffe R., Littler T. S. Ann. occup. Hyg. 1958; 1: 114
- Littler T. S. N.P.L. Symposium no. 12. H.M.S.O., London 1962; 285
- Rosen S., Bergman M., Plester D., El-Mofty A., Satti M. H. Ann. Otol. Rhinol. Laryng. 1962; 71: 727
- Rosen S., Olin P. Int. Audiol. 1966; 5: 156
- Taylor W., Pearson J., Mair A. B. J. I. M. 1967; 24: 114
- Taylor W., Pearson J., Mair A., Burns W. J. acoust. Soc. Amer. 1964; 38: 1, 113
- Taylor W., Burns W., Mair A. Ann. occup. Hyg. 1964; 7: 343
- Whittle L. S., Robinson D. W. Nature 1961; 189: 617–618, 4765