Sampling techniques /
519.9COC
Cochran, William G.
Sampling techniques / by William G.Cochran.- 2nd ed.-New Delhi:Wiley Eastern Private Limited,1972.
xvii,413p. :ill.;22(Hb)
Note: Includes index
ISBN:0852261225 Rs. 18.75
Cen Lib/Ret /705411/ 705411 / 18.75 /sign
