Sellin, B. (1991). The EC programme "Comparability of vocational training qualifications": Aims, working methods, evaluation. CEDEFOP--European Centre for the Development of Vocational Training ; UNIPUB [distributor].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSellin, Burkart. The EC Programme "Comparability of Vocational Training Qualifications": Aims, Working Methods, Evaluation. Berlin : Lanham, MD: CEDEFOP--European Centre for the Development of Vocational Training ; UNIPUB [distributor], 1991.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSellin, Burkart. The EC Programme "Comparability of Vocational Training Qualifications": Aims, Working Methods, Evaluation. CEDEFOP--European Centre for the Development of Vocational Training ; UNIPUB [distributor], 1991.
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