Bird, T. Brilliant Selling 2nd edn: What the best salespeople know, do and say : What the best salespeople know, do and say (2.). Pearson Education UK.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBird, Tom;Cassell. Brilliant Selling 2nd Edn: What the Best Salespeople Know, Do and Say : What the Best Salespeople Know, Do and Say. 2. Pearson Education UK.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBird, Tom;Cassell. Brilliant Selling 2nd Edn: What the Best Salespeople Know, Do and Say : What the Best Salespeople Know, Do and Say. 2. Pearson Education UK.
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