Information please environmental almanac 1993 Comp by World Resource Institute 

 - Boston  Houghton Mifflin       1993 
 - 656p  cm. 
<br/><br/><label>Standard No.: </label>28705 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Subjects--Topical Terms: </label><br/>BIOLOGY
<br/><br/><label>Dewey Class. No.: </label>G:55n1,N92, N3 ( RR)