Vista normal
Vista MARC
Cohen, Steven P. (Personal Name)
Negotiate your way to success, 2007: eCIP t.p. (Steven P. Cohen)
The practical negotiator, 2014: ECIP t.p. (Steven P. Cohen) data view (b. July 23, 1941)
Biblioteca del congreso (Estados Unidos), 25 octubre 2018: catálogo electrónico https://goo.gl/HNVMKK