1.
|
Cham : Palgrave Macmillan, [2019] ©2019
|
2.
|
San Francisco : Berrett-Koehler, c2002.
|
3.
|
Beverly Hills, Calif. : Sage Publications, c1976.
|
4.
|
New York : Business Expert Press, 2021. ©2021.
|
5.
|
[Place of publication not identified] : 50Minuten.de, [2018] ©2018
|
6.
|
New York, New York : Portfolio/Penguin, [2018]
|
7.
|
Randburg, Republic of South Africa : Knowres Publishing, 2013.
|
8.
|
River Edge, N. J. : World Scientific, c2001.
|
9.
|
Basingstoke [England] ; New York : Palgrave Macmillan, 2008.
|
10.
|
San Francisco : Pfeiffer, c2004.
|