Clement, G., & Levine, M. Copyright and publication status of pre-1978 dissertations: A content analysis approach.
Παραπομπή Chicago StyleClement, Gail., και Melissa Levine. Copyright and Publication Status of Pre-1978 Dissertations: A Content Analysis Approach.
Παραπομπή MLAClement, Gail., και Melissa Levine. Copyright and Publication Status of Pre-1978 Dissertations: A Content Analysis Approach.
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