Boldt, Laurence G..
Zen and the art of making a living : a practical guide to creative career design /

. - New York  : Penguin Books,  1993 
. - Ixiii, [i], 599 p. : tabl., ill.  24 cm. 
<br/>К.: Бібліогр. : с. 575-591. 
<br/><label>  ISBN: </label>0-14-019469-Х