Billy C. Langley

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Heat Pump Technology: Systems Design, Installation, and Troubleshooting
Langley, Billy C.

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� 4.53

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Title: Electric controls for refrigeration and air condit
Langley, Billy C

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� 5.39

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Air Conditioning and Refrigeration: Troubleshooting Handbook
Langley, Billy C.

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� 12.67

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Comfort Heating
Langley, Billy C.

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� 5.46

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Refrigerant Management: The Recovery, Recycle and Reclaim of CFC's
Langley, Billy C.

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Heating Systems Troubleshooting Handbook
Langley, Billy C.

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� 14.64

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Fine Tuning Air Conditioning & Refrigeration Systems
Langley, Billy C.

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� 12.23

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Electric Controls for Refrigeration and Air Conditioning
Langley, Billy C.

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� 11.41

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