Silberman, Melvin L..
Active training: a handbook of techniques, designs, case examples and tips /
Mel Silberman, Elaine Biech : assisted by Carol Auerbach 
. - 4th edition 
. - Hoboken : Wiley,  2015 
. - xvi, 425 p.  ill., schem.  24 cm. 
 - (Active training series )
<br/>К.: Бібліогр. в прим. : с. 395-397, Покажчик 
<br/><label>  ISBN: </label>978-1-118-97201-4