Page, John S. <br/><br/>
Estimators man hour manual on ... heating, air conditioning ventilating and plumbing / 
John S. Page 
 - 2nd ed. 
 - Houston, Tex. :  Gulf Publishing Co.,  1978 
 - 218 p. :  ill.;  24 cm. 
<br/><br/><label>LCCN: </label>61-10176 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Heating--Tables, calculations etc.<br/>Air conditioning<br/>Ventilation<br/>Plumbing