Laak, Rein. <br/><br/>
Wastewater engineering design for unsewered areas / 
Rein Laak. 
 - 2nd ed. 
 - Lancaster :  Technomic Pub. Co.,  c1986. 
 - xii, 171 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0877624623 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage disposal, Rural.<br/>Sewage disposal plants-- Design and construction.
<br/><br/><label>Dewey Class. No.: </label>628.742