India. Directorate of National Sample Survey. (1961). National sample survey no. 37 , 13th round: ,Sept 1957 - 1958 , survey of book readers preference in India. National Sample Survey Organisation.
استشهاد بنمط شيكاغوIndia. Directorate of National Sample Survey. National Sample Survey No. 37 , 13th Round: ,Sept 1957 - 1958 , Survey of Book Readers Preference in India. Delhi: National Sample Survey Organisation, 1961.
MLA استشهادIndia. Directorate of National Sample Survey. National Sample Survey No. 37 , 13th Round: ,Sept 1957 - 1958 , Survey of Book Readers Preference in India. National Sample Survey Organisation, 1961.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.