Report, 19 -1987 

 - Harpenden :  (s.e.),  19 -1987. 
 - v.  : ilus. ; gráfs. 
<br/><br/> c.c. AFRC Institute of Arable Crops Research, Harpenden, Hertfordashire, England, 1988-  La biblioteca tiene : 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987 
<br/><br/><label>LCCN: </label>53242 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--Investigacion--Gran Bretana.
<br/><br/><label>Dewey Class. No.: </label>630.72  / R68