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Grenny, Joseph (Nombre personal)
United for Zion, 2000: t.p. (Joseph Grenny)
Email from public relations manager, July 19, 2013 ("Yes, Joseph Grenny, co-author of 'Crucial Conversations', is also the co-author of 'United for Zion.'")
Grenny, Joseph. Four crucial skills of a high performance cultural operating system. PMI Global Congress 2014--EMEA (2014), proceedings Joseph Grenny and David Maxfield
Patterson, Kerry. Crucial conversations [SR], 2013, ℗2012: container (performed by Joseph Grenny)