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- Harker, Ralph J.
Harker, Ralph J. (Personal Name)
Machine generated authority record.
Work cat.: (AR-HaUTN): Harker, Ralph J., Generalized methods of vibration analysis, c. 1983
Machine generated authority record.
Work cat.: (AR-HaUTN): Harker, Ralph J., Generalized methods of vibration analysis, c. 1983