American Society of Civil Engineers, NAHB Research Center, National Association of Home Builders (U.S.), & Structural Engineering Institute. (2001). Design and construction of frost-protected shallow foundations. American Society of Civil Engineers. https://doi.org/10.1061/9780784405642
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)American Society of Civil Engineers, NAHB Research Center, National Association of Home Builders (U.S.), و Structural Engineering Institute. Design and Construction of Frost-protected Shallow Foundations. Reston, Virginia: American Society of Civil Engineers, 2001. https://doi.org/10.1061/9780784405642.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)American Society of Civil Engineers, et al. Design and Construction of Frost-protected Shallow Foundations. American Society of Civil Engineers, 2001. https://doi.org/10.1061/9780784405642.