TY - BOOK AU - Cassel,Claes-Magnus AU - Sarndal,Carl-Erik,b.1937 AU - Wretman,Jan Hakan,b.1939 TI - Foundations of inference in survey sampling SN - 0471025631 PY - 1977/// CY - New York PB - Wiley KW - Sampling (Statistics) KW - Estimation theory N1 - Bibliography : p. 179-186 and Includes index ER -