Reactive nitrogen in the environment  : too much or too little of a good thing 
[this review was authored by Elizabeth Braun on a commission from UNEP-DTIE] 
 - Paris  UNEP  WHRC  2007 
 - 51 p.  il. col.  30 cm 
<br/><br/><label>ISBN: </label>9789280727838 
<br/><br/><label>Subjects--Index Terms: </label>Politica ambiental Impacto ambiental Nitrogeno