Individual onsite waste water systems:  proceedings/ 
National Conference for Individual onsite Waste water systems; Sponsered by National Sanitation Foundation; edited bny Nina I. McClelland 
 - Michigan:  Ann Arbor Science,  c1977 
 - vi, 166 p.:  ill.;  24 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0250402084  $ 20.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage disposal--Congresses<br/>Sewarage--Congresses<br/>Sewage--Purification--Congresses
<br/><br/><label>Dewey Class. No.: </label>628.39