METCALFE, T. J. <br/><br/>
Weighing Machines: A Treatise in Three Volumes, Vol. 2, Semi-self-Indicating and Semi-Indicating Mechanisms  

 - London  Griffin  1969 
 - xv,178p., ii.  Index  24cm. 
<br/><br/><label>ISBN: </label>85264 131 1 
<br/><br/><label>Dewey Class. No.: </label>6621.3 MET