Borgman, Harry. <br/><br/>
The pen and pencil technique book 
by Harry Borgman ; foreword by Wenton Blake. 
 - New York  Watson-Guptill Publications  1984. 
 - 176 p.  ill. (some col.) 
<br/><br/><label>ISBN: </label>0823039897 
<br/><br/><label>LCCN: </label>84002292  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pen drawing--Technique.<br/>Pencil drawing--Technique.
<br/><br/><label>LC Class. No.: </label>NC905  / .B68 1984 
<br/><br/><label>Dewey Class. No.: </label>741.2