Environmental control and public health 
prepared by the course team 
 - Milton Keynes  The Open University Press  1975 
 - v. :  ill. ;  30 cm. 
<br/><br/>Unit 8. Administrative control 
<br/><br/><label>ISBN: </label>0335060013 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental engineering<br/>Environmental health