CAB abstracts online manual. 

 - 1989 ed. 
 - Wallingford, Oxon, UK :  C.A.B. International,c 1989. 
 - 373 p. ;  30 cm. 
<br/><br/><label>ISBN: </label>0851985971 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information storage and retrieval systems--Agriculture --Handbooks, manuals, etc.
<br/><br/><label>LC Class. No.: </label>Z699.5.A5  / .C32 1989