Gottschalk, C., Libra, J. A., & Saupe, A. Ozonation of water and waste water: A practical guide to understanding ozone and its applications (2nd, completely revised and updated ed.).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Gottschalk, C., J. A. Libra, و A. Saupe. Ozonation of Water and Waste Water: A Practical Guide to Understanding Ozone and Its Applications. 2nd, completely revised and updated ed.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Gottschalk, C., et al. Ozonation of Water and Waste Water: A Practical Guide to Understanding Ozone and Its Applications. 2nd, completely revised and updated ed.
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