Haswell, M <br/><br/>
Energy and subsistence 
Margsret haswell 
 - 2nd edition 
 - London  Macmillan  1985 
 - xiii, 125p.;ill  pbk 
<br/><br/><label>ISBN: </label>O333384261 
<br/><br/><label>LC Class. No.: </label>HD 9502 .A2 H27 1985