linkedin.com (Firm) & Gardner, B. (2018). Logo Development: Identity Design and Discovery. linkedin.com.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रlinkedin.com (Firm) और Bill Gardner. Logo Development: Identity Design and Discovery. Carpenteria, CA: linkedin.com, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रlinkedin.com (Firm) और Bill Gardner. Logo Development: Identity Design and Discovery. linkedin.com, 2018.
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