Allaby, Michael <br/><br/>
Guide to gaia / 
Michael Allaby 
 - London :  Macdonald Optima,  1989 
 - ix, 181 p. ;  22 cm. 
<br/><br/> Includes index  "An Optima book"--T.p. verso 
<br/><br/><label>ISBN: </label>0356175359 :  £6.99 9780356175355 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gaia hypothesis<br/>Geobiology<br/>Pollution--Environmental aspects