Smith, Katherine A. <br/><br/>
How cows make milk 
Katherine A. Smith 
 - Flinders Park:  Era Publications,  1993. 
 - 17p.:  ill.,  cm. 
<br/><br/><label>ISBN: </label>9780947212285 0947212280 
<br/><br/><label>Dewey Class. No.: </label>428.6