Donaldson P E K <br/><br/>
Electrical apparatus for biological research 

 -  1958 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>73659 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrical engineering
<br/><br/><label>Dewey Class. No.: </label>D66e0G, J8