Wolf. Jeff & Shelton, K. (2016). Seven Disciplines of a Leader: How to Help Your People, Team and Organization Achieve Maximum Effectiveness. Wiley India Pvt. Ltd.
Lua i Stíl Chicago (17ú heag.)Wolf. Jeff agus Ken Shelton. Seven Disciplines of a Leader: How to Help Your People, Team and Organization Achieve Maximum Effectiveness. New Delhi: Wiley India Pvt. Ltd, 2016.
Lua MLA (9ú heag.)Wolf. Jeff agus Ken Shelton. Seven Disciplines of a Leader: How to Help Your People, Team and Organization Achieve Maximum Effectiveness. Wiley India Pvt. Ltd, 2016.
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