Designing courses and obstacles / 
Pamela Carruthers ... [et al.] ; edited by John H. Fritz 
 - Boston :  Houghton Mifflin,  1978 
 - 161 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0395266866 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Courses (Horse sport)--Design and construction