Page, John S. <br/><br/>
Estimator's piping man hour manual / 
John S. Page, James G. Nation 
 - 3rd ed. 
 - Houston, Tex. :  Gulf Publishing Co.,  1976 
 - xiv, 220 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0872017001 
<br/><br/><label>LCCN: </label>75-28602 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pipe-fitting--Estimates--United States