Tulgan, B., & Chamberlain, M. (2020). The art of being indispensable at work: Win influence, beat overcommitment, and get the right things done (Unabridged.). Ascent Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTulgan, Bruce, और Mike Chamberlain. The Art of Being Indispensable at Work: Win Influence, Beat Overcommitment, and Get the Right Things Done. Unabridged. Rego Park: Ascent Audio, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रTulgan, Bruce, और Mike Chamberlain. The Art of Being Indispensable at Work: Win Influence, Beat Overcommitment, and Get the Right Things Done. Unabridged. Ascent Audio, 2020.
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