Sheridan, M. (2019). They ask, you answer: A revolutionary approach to inbound sales, content marketing, and today's digital consumer (2.).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSheridan, Marcus. They Ask, You Answer: A Revolutionary Approach to Inbound Sales, Content Marketing, and Today's Digital Consumer. 2. 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSheridan, Marcus. They Ask, You Answer: A Revolutionary Approach to Inbound Sales, Content Marketing, and Today's Digital Consumer. 2. 2019.
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