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Lehrlingslexikon
Brock, Adolf, (1977)
Handwörterbuch der Berufserziehung
Schlieper, Friedrich, (1964)
Handwörterbuch der Berufserziehung in den Ländern der Europäischen Wirtschaftsgemeinschaft
Labour conditions and discrimination in Southern Rhodesia (Zimbabwe)
Clarke, Duncan G., (1978)
Conciliation and arbitration procedures in labour disputes : a comparative study
(1980)
Conditions of work and quality of working life : a directory of institutions
Stoddart, L., (1981)