Poulton E C <br/><br/>
Environment and human efficiency 

 - Charles  Springer-field           1970 
 - xxi,328p.  cm. 
 - American Lecture Series; 765 .
<br/><br/><label>Standard No.: </label>21928 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>Y7:(G:55), L0