Hoel, Paul G An introduction to mathematical statistics / Paul G Hoel - [2d ed.] - New York : John Wiley & Sons, c1954 [Printing 1956] - xi, 331 p. : ill. ; 23 cm. - Wiley Publications In Statistics . Bibliography: p. 372. & Index. Subjects--Topical Terms: Mathematical statistics. Dewey Class. No.: 519.5 / HOI 1956