1. Abdell-Rahman HS, Hetland L, Couri D (1976) Toxicity and metabolism of methal-n-butyl ketone. Am Ind Hyg Assoc J 37: 95–102
2. American Conference of Governmental Industrial Hygienists (1979) Threshold limit values for chemicals substances and physical agents in the workroom environment. Cincinnati, Ohio, 1979
3. Franchini I, Cavatorta A, Falzoi M, Romita G, Gatti R, Pietrini V, Tagliavini F, Palla G (1978) Neurotoxicité expérimentale du cyclohexane et du cyclohexanone. XIX Int Congr Occup Health, 25–30 September 1978. [Abstr] pp 208–209
4. Mutti A, Pedroni C, Falzoi M, Cavatorta A, Franchini I Absorption and alveolar excretion of cyclohexane in workers in a shoe factory. J Appl Toxicol 1: 220-224
5. Nie NH, Hull CH, Jenkins JG, Steinbrenner K, Bent DH (1975) SPSS: statistical package of the social sciences, 2nd edn. MacGraw Hill, New York