Freund, John E. Mathematical statistics / John E. Freund, Ronald E. Walpole. - Englewood Cliffs, N.J. : Prentice-Hall, 1987. - xv, 608 p. : ill. ; 24 cm. Includes bibliographies and index. ISBN: 0135620759 Subjects--Topical Terms: Mathematical statistics. LC Class. No.: QA276 / .F692 1987