Laboratory methods / 
(by) Joan R. Davies ... [et al.]. 
 - London :  H. M. S. O.,  1974. 
 - v. 2 :  ill. ;  25 cm. 
 - Great Britain. Public Health Laboratory Service, Board Monograph series ;  no.5 .
<br/><br/>Bibl. 
<br/><br/><label>ISBN: </label>0118802054