Harding, Thomas Swann. <br/><br/>
Two blades of grass, a history of scientific development in the U. S. Department of Agriculture 

 - Norman :  University of Oklahoma,  1947 
 - 352 p. 
<br/><br/><label>LCCN: </label>73662 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--Investigación.
<br/><br/><label>Dewey Class. No.: </label>630.72  / H37