Ryle, A. John. <br/><br/>
Changing disciplines :  lectures on the history, method, and motives of social pathology / 
John A. Ryle. 
 - London :   Oxford university press,   1948. 
 - 123 p. :  ill. ;  18 cm. 
<br/><br/> Includes index. 
<br/><br/>392  392 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Monocotyledons.
<br/><br/><label>Dewey Class. No.: </label>301.46 / R984c