OXFORD biology readers Cushing, D.H. <br/><br/>
the prodctivity of the sea 
/[by] D.H.Cushing 
 - Oxford  Oxford University press  1975 
 - 15 p. 
<br/><br/><label>ISBN: </label>199141770 
<br/><br/><label>Dewey Class. No.: </label>574  / OXF