(1931). Estimating building costs, first edition published under the title of Estimating building costs and appraising buildings, by Frank E. Barnes ..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Estimating Building Costs, First Edition Published Under the Title of Estimating Building Costs and Appraising Buildings, by Frank E. Barnes .. 1931.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Estimating Building Costs, First Edition Published Under the Title of Estimating Building Costs and Appraising Buildings, by Frank E. Barnes .. 1931.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.