Powell, Betty. <br/><br/>
Knowledge of actions / 
Betty Powell. 
 - London :   George Allen & Unwin,  c 1967. 
 - 112 p. ;  18 cm. 
<br/><br/> includes index. 
<br/><br/>342  342 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epistemology.
<br/><br/><label>Dewey Class. No.: </label>121 / P871k