India. Directorate of National Sample Survey. (1976). National sample survey no. 213: Tables with notes on ASI - 1969 sample sector summary results. National Sample Survey Organisation.
استشهاد بنمط شيكاغوIndia. Directorate of National Sample Survey. National Sample Survey No. 213: Tables with Notes on ASI - 1969 Sample Sector Summary Results. National Sample Survey Organisation, 1976.
MLA استشهادIndia. Directorate of National Sample Survey. National Sample Survey No. 213: Tables with Notes on ASI - 1969 Sample Sector Summary Results. National Sample Survey Organisation, 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.