Umapathy, N. (1976). The Board of Revenue in Andhra Pradesh. copies can be had from Umapathy.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Umapathy, N. The Board of Revenue in Andhra Pradesh. Secunderabad: copies can be had from Umapathy, 1976.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Umapathy, N. The Board of Revenue in Andhra Pradesh. copies can be had from Umapathy, 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.