Burn, Joshua Harold, 1892- Biological standardisation / by J.H. Burns, [and others] - 2nd ed. - London ; New York : Oxford University Press , 1950. - x, 440 p. : ill., diagrs ; 23 cm. - Oxford Medical publications. . Includes bibliographical references. Subjects--Topical Terms: Biological Assay. National Library of Medicine Call No.: QV 771 / B93b 1950