Life :  the science of biology / 
by William K. Purves  et al. 
 - 5th ed. 
 - Sunderland :  Sinauer Associates,   1997. 
<br/><br/><label>ISBN: </label>0716728699 
<br/><br/><label>LCCN: </label>94-24802 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology.<br/>Life.
<br/><br/><label>LC Class. No.: </label>QH 308.2 LIF 1997