Lerche, Grith. <br/><br/>
Agricultural tools and field shapes   
by Grith Lerche and Axel Steensberg. 
 - Copenhagen  National Museum Publication Department  1980 
 - 107p 
<br/><br/><label>ISBN: </label>8748003093 
<br/><br/><label>Dewey Class. No.: </label>631.3  / N80