Babbitt, Harold E. Caldewll, David H. <br/><br/>
University of Illinois-Engineering experiment station,Urbana Bulletin  B.No.374,Free surface around,and interference between,gravity wells 

 -  1948 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Engineering
<br/><br/><label>Dewey Class. No.: </label>620  / U4B