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Proven proposal strategies to win more business
Holtz, Herman - 1998
Persistent link: https://www.econbiz.de/10004367539
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The consultant's guide to proposal writing : how to satisfy your clients and double your income
Holtz, Herman - 1998 - 3. ed.
Persistent link: https://www.econbiz.de/10004379728
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The concise guide to becoming an independent consultant
Holtz, Herman - 1999
Persistent link: https://www.econbiz.de/10004057261