The biology of blue-green algae 
<label>;</label> Carr, N.G. <label>;</label> Whitton, B.A. 
 - London  Blackwell Scientific Publications  1973 
 - x, 676p.  ill.  24 cm. 
<br/><br/><label>ISBN: </label>0632090405 
<br/><br/><label>Dewey Class. No.: </label>589.8  / BIO