Harris, G.L. <br/><br/>
State weights and measures laboratories. 

 - [s.l.] :  NIST  1997. 
 - Handbook, no.<143> no. 143 .
 - National Institute of Standards and Technology^pUS .
 - Handbook, no.<143> no. 143 .
<br/><br/> Supersedes NIST Handbook 143 [1996 edition]