Fisher R. A., M. A. Statistical methods for research workers / M. A. Fisher R. A. - 9th ed. - Edinburgh, London : Oliver and Boyd, 1944.. - viii, 239 p. : 4 folded tables ; 23 cm. - Biological monographs and Manuals. . Includes bibliographical references and index. Subjects--Topical Terms: Statistics. LC Class. No.: HA29 / F58 1944