APA استشهاد

Singh, D., & Chaudhary, F. (1986). Theory and analysis of sample survey designs. New age International.

استشهاد بنمط شيكاغو

Singh, Daroga, و F.S Chaudhary. Theory and Analysis of Sample Survey Designs. New Delhi: New age International, 1986.

MLA استشهاد

Singh, Daroga, و F.S Chaudhary. Theory and Analysis of Sample Survey Designs. New age International, 1986.