Singh, D., & Chaudhary, F. (1986). Theory and analysis of sample survey designs. New age International.
Chicago-стиль цитированияSingh, Daroga, and F.S Chaudhary. Theory and Analysis of Sample Survey Designs. New Delhi: New age International, 1986.
MLA-цитированиеSingh, Daroga, and F.S Chaudhary. Theory and Analysis of Sample Survey Designs. New age International, 1986.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.