Não informado. (2017). Advertising Age's Business Marketing. Crain Communications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Advertising Age's Business Marketing. Chicago, Ill: Crain Communications, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Advertising Age's Business Marketing. Crain Communications, 2017.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.