توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

DUTTA, B. N. (2012). Estimating and costing in civil engineering: : theory and practice, including specifications and valuations. UBS Publishers.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

DUTTA, B. N. Estimating and Costing in Civil Engineering: : Theory and Practice, Including Specifications and Valuations. UBS Publishers, 2012.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

DUTTA, B. N. Estimating and Costing in Civil Engineering: : Theory and Practice, Including Specifications and Valuations. UBS Publishers, 2012.