APA
Shambhu Dayal, University of Delhi. Faculty of Mathematical Sciences. Department of Mathematics & University of Delhi. Faculty of Mathematical Sciences. Department of Mathematics. (1980). Contribution to the sampling theory of surveys. : .
Chicago
Shambhu Dayal, University of Delhi. Faculty of Mathematical Sciences. Department of Mathematics and University of Delhi. Faculty of Mathematical Sciences. Department of Mathematics. 1980. Contribution to the sampling theory of surveys. : .
Harvard
Shambhu Dayal, University of Delhi. Faculty of Mathematical Sciences. Department of Mathematics and University of Delhi. Faculty of Mathematical Sciences. Department of Mathematics. (1980). Contribution to the sampling theory of surveys. : .
MLA
Shambhu Dayal, University of Delhi. Faculty of Mathematical Sciences. Department of Mathematics and University of Delhi. Faculty of Mathematical Sciences. Department of Mathematics. Contribution to the sampling theory of surveys. : . 1980.
