Schultz, H., & Bowlby, S. (2011). Onward: How starbucks fought for its life without losing its soul (Unabridged.). HighBridge Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSchultz, Howard, और Stephen Bowlby. Onward: How Starbucks Fought for Its Life Without Losing Its Soul. Unabridged. Prince Frederick: HighBridge Audio, 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSchultz, Howard, और Stephen Bowlby. Onward: How Starbucks Fought for Its Life Without Losing Its Soul. Unabridged. HighBridge Audio, 2011.
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