Statistical concepts and methods / Gouri K. Bhattacharyya, Richard A. Johnson. Bhattacharyya, Gouri K., 1940- Johnson, Richard A. (Richard Arnold), 1937- joint author. Statistics. HA29 .B46 1977 519.5 BHS Includes bibliographical references and index. New York : John Wiley, c1977. c1977. 1977 Text xv, 639 p. : http://www.loc.gov/catdir/bios/wiley041/76053783.html http://www.loc.gov/catdir/description/wiley032/76053783.html http://www.loc.gov/catdir/toc/onix02/76053783.html eng Wiley series in probability and mathematical statistics