1.
Plumbing & Hvac Manhour Estimates A Guide to Competitive Bidding
by Prescher, Ray E.
ISBN: 9781572180413
List Price: $28.25
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National Plumbing and Hvac Estimator 1998 (Book & Disk)
by Prescher, Ray E., Kiley, Ma...
ISBN: 9781572180505
List Price: $48.25
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1996 National Plumbing and Hvac Estimator/Disk (National Plumbing & HVAC Estimator (W/CD))
by Ray E. Prescher
ISBN: 9781572180185
List Price: $38.25
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National Plumbing and HVAC Estimator, 1993
by Prescher, Ray E.
ISBN: 9780934041751
List Price: $32.25
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National Plumbing and HVAC Estimator, 1995 - Ray E. Prescher - Paperback
by Prescher, Ray E.
ISBN: 9781572180031
List Price: $32.50
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National Plumbing+hvac Estimator-w/disk
by Prescher, Ray E., Kiley, Ma...
ISBN: 9781572180345
List Price: $38.25