Maritz, J.S. Distribution-free statistical methods/ J.S. Maritz. - 2nd ed. - London : Chapman & Hall, 1995. - xii, 255 p. ; 24 cm. Includes bibliographical references and index. ISBN: 0412552604 Subjects--Topical Terms: Statistics--Methodology. LC Class. No.: QA276.7 / M37 1995