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Closing techniques : (that really work!) / by Stephan Schiffman.
- 658.85 S333c 1999
- Schiffman, Stephan.
- Adams Media,
- c1999.
- Holbrook, Mass. :
-
Cold calling techniques : (that really work!) / by Stephan Schiffman.
- 658.85 S333 1999
- Schiffman, Stephan.
- Adams Media Corp.,
- c1999.
- Holbrook, Mass. :