Ritson, Christopher <br/><br/>
Agricultural economics :  principles and policy / 
Christopher Ritson 
 - St. Martin's Press :  New York,  1977 
 - xiii, 409 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0312014600 
<br/><br/><label>LCCN: </label>77-073600 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Economic aspects