Lieberman, N. P. (2013). Troubleshooting vacuum systems: Steam turbine surface condensers and refinery vacuum towers. John Wiley & Sons Inc.. https://doi.org/10.1002/9781118570968
Παραπομπή σε μορφή Chicago (17η εκδ.)Lieberman, Norman P. Troubleshooting Vacuum Systems: Steam Turbine Surface Condensers and Refinery Vacuum Towers. Hoboken, New Jersey: John Wiley & Sons Inc., 2013. https://doi.org/10.1002/9781118570968.
Παραπομπή σε μορφή MLA (8th εκδ.)Lieberman, Norman P. Troubleshooting Vacuum Systems: Steam Turbine Surface Condensers and Refinery Vacuum Towers. John Wiley & Sons Inc., 2013. https://doi.org/10.1002/9781118570968.
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