Pettersson, Hans, <br/><br/>
The ocean floor 

 - New York,  Hafner,  1969 [c1954] 
 - 181 p.  illus.  22cm 
 - Yale University, Mrs. Hepsa Ely Silliman memorial lectures .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ocean bottom<br/>Submarine geology
<br/><br/><label>Dewey Class. No.: </label>551 HAF 1954 A023 Or.