Proceeding 

 - Madison :  University of Wisconsin,  1961 
 - 45 p. :  il. 
 - University of Wisconsin. Engineering Experiment Station  ; no 18 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>ALCANTARILLADO
<br/><br/><label>Dewey Class. No.: </label>628.3  / S512 1961