Krais, B., & Krebstakies, M. (1983). Trainers and teachers in vocational training in the Federal Republic of Germany: Report drawn up at the request of CEDEFOP, Berlin 1983. European Centre for the Development of Vocational Training.
Cytowanie według stylu Chicago (wyd. 17)Krais, Beate, i Marlies Krebstakies. Trainers and Teachers in Vocational Training in the Federal Republic of Germany: Report Drawn Up at the Request of CEDEFOP, Berlin 1983. Berlin: European Centre for the Development of Vocational Training, 1983.
Cytowanie według stylu MLA (wyd. 8)Krais, Beate, i Marlies Krebstakies. Trainers and Teachers in Vocational Training in the Federal Republic of Germany: Report Drawn Up at the Request of CEDEFOP, Berlin 1983. European Centre for the Development of Vocational Training, 1983.