MATERIALS 710,518 Materials of the Polish—Canadian Week on Occupational Health 11—17 September 1978. Red. Janusz Indulski. Łódź 1981 8° s. 264, nlb. 2 Institute of Occupational Medicine in the Textile and Chemical Industries Łódź Studies and Monographic Materials no 1 [Druga k. tyt. w jęz. pol., tekst część]