Covey, Stephen M. R..
The speed of trust: the one thing that changes everything /
Stephen M.R. Covey with Rebecca R. Merrill 
. - New York : Free Press,  2008 
. - xxvi, 354 p.  ill., tab.  21 cm. 
<br/>К.: Бібліогр. : c. 325-337, Index 
<br/><label>  ISBN: </label>13 : 978-1-4165-4900-0 10 : 1-4165-4900-5