توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

American Institute of Real Estate Appraisers & KUEHNLE, W. R. CASE STUDIES IN AIR RIGHTS AND SUBSURFACE TUNNEL ROAD EASEMENTS; BY W.R. KUEHNLE AND OTHERS.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

American Institute of Real Estate Appraisers و WALTER R. KUEHNLE. CASE STUDIES IN AIR RIGHTS AND SUBSURFACE TUNNEL ROAD EASEMENTS; BY W.R. KUEHNLE AND OTHERS. THE INST., 1965. 38P.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

American Institute of Real Estate Appraisers و WALTER R. KUEHNLE. CASE STUDIES IN AIR RIGHTS AND SUBSURFACE TUNNEL ROAD EASEMENTS; BY W.R. KUEHNLE AND OTHERS.