Buttram, J.L. und Covert, R.W. (ohne Datum) The Discrepancy Evaluation Model: A Systematic Approach for the Evaluation of Career Planning and Placement Programs.
Chicago Manual of Style 17th edition (full note)Buttram, Joan L., und Robert W. Covert. The Discrepancy Evaluation Model: A Systematic Approach for the Evaluation of Career Planning and Placement Programs.
American Psychological Association 7th editionButtram, J. L., & Covert, R. W. (o. J.). The Discrepancy Evaluation Model: A Systematic Approach for the Evaluation of Career Planning and Placement Programs.
Modern Language Association 9th editionButtram, J. L., und R. W. Covert. The Discrepancy Evaluation Model: A Systematic Approach for the Evaluation of Career Planning and Placement Programs.
ISO-690 (author-date, Deutsch)BUTTRAM, Joan L. und Robert W. COVERT, [kein Datum]. The Discrepancy Evaluation Model: A Systematic Approach for the Evaluation of Career Planning and Placement Programs