Emmens, C. W. <br/><br/>
Principles of biological assay./ 
With a foreword by Percival Hartley. 
 - London:  Chapman & Hall,  1948. 
 - xv, 206 p.:  diagrs.;  23 cm. 
<br/><br/><label>LCCN: </label>49006911 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological assay.
<br/><br/><label>Dewey Class. No.: </label>615.107  / E54p