Penn, C. W. <br/><br/>
Handling laboratory microorganisms / 

 - Philadelphia :  Open University Press,  1991. 
 - 160 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0335092039  
<br/><br/><label>LC Class. No.: </label>QR65  / .P37 1990