Hawthorn, R. (1992). Occupational profiles of vocational counsellors in the United Kingdom. European Centre for the Development of Vocational Training.
Chicago-referens (17:e uppl.)Hawthorn, Ruth. Occupational Profiles of Vocational Counsellors in the United Kingdom. Berlin: European Centre for the Development of Vocational Training, 1992.
MLA-referens (8:e uppl.)Hawthorn, Ruth. Occupational Profiles of Vocational Counsellors in the United Kingdom. European Centre for the Development of Vocational Training, 1992.
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