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| 2005 | ||
|---|---|---|
| 2 | EE | Margaret A. Chaplan, Edward J. Hertenstein: Role-related library use by local union officials. JASIST 56(10): 1062-1074 (2005) | 
| 2002 | ||
| 1 | EE | Margaret A. Chaplan, Edward J. Hertenstein: The Information Needs of Local Union Officials. Library Trends 51(1): (2002) | 
| 1 | Edward J. Hertenstein | [1] [2] |