India. Directorate of National Sample Survey. (1968). National sample survey \no. 125, 19th round, technical paper on sample design. National Sample Survey Organisation.
استشهاد بنمط شيكاغوIndia. Directorate of National Sample Survey. National Sample Survey \no. 125, 19th Round, Technical Paper on Sample Design. Delhi: National Sample Survey Organisation, 1968.
MLA استشهادIndia. Directorate of National Sample Survey. National Sample Survey \no. 125, 19th Round, Technical Paper on Sample Design. National Sample Survey Organisation, 1968.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.