Wetherill, G. Barrie Sequential methods in statistics / G. Barrie Wetherill. - London ; New York : Methuen; Wiley, c1966 - x, 218 p. : ill. ; 23 cm. Bibliography: p. 205-214 and index Subjects--Topical Terms: Sequential analysis. Dewey Class. No.: 519.54 / WES 1966