Giant hogweed :  the problem and its control. 

 - Belfast :  Department of the Environment for Northern Ireland, Department of Agriculture for Northern Ireland,  1990. 
 - 4p. 
<br/><br/><label>ISBN: </label>1855270293 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Weeds--Control.<br/>Gardening--Northern Ireland.