Roger J. Volkema

J.V. ยท R.J.

titleISBN-13
(ISBN-10)
year of publication
Leverage: How to Get It and How to Keep It in Any Negotiation978-0-8144-7326-9
(0-8144-7326-1)
2006
The Negotiation Toolkit: How to Get Exactly What You Want in Any Business or Personal Situation978-0-8144-8008-3
(0-8144-8008-X)
1999

Roger J.W. Marshall