India. Directorate of National Sample Survey. (1978). National sample survey no. 241,twenty fifth round July 1970 - June 1971 earnings, indebtedness, etc. National Sample Survey Organisation.
استشهاد بنمط شيكاغوIndia. Directorate of National Sample Survey. National Sample Survey No. 241,twenty Fifth Round July 1970 - June 1971 Earnings, Indebtedness, Etc. Delhi: National Sample Survey Organisation, 1978.
MLA استشهادIndia. Directorate of National Sample Survey. National Sample Survey No. 241,twenty Fifth Round July 1970 - June 1971 Earnings, Indebtedness, Etc. National Sample Survey Organisation, 1978.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.