Allen, John R. L. <br/><br/>
Current ripples :  their relation to patterns of water and sediment motion 
John R. L. Allen. 
 - Amsterdam :  North-Holland Pub. Co.,  1968. 
 - xiii, 433 p. ;  illus. ;  27 cm. 
<br/><br/>Bibliography: p. [415]-422. and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ripple-marks.
<br/><br/><label>Dewey Class. No.: </label>551.303  / ALC 1968