Erlandson, R. F. (2008). Universal and accessible design for products, services, and processes. CRC Press/Taylor & Francis Group.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रErlandson, Robert F. Universal and Accessible Design for Products, Services, and Processes. Boca Raton, Fla: CRC Press/Taylor & Francis Group, 2008.
एमएलए (8वां संस्करण) प्रशस्ति पत्रErlandson, Robert F. Universal and Accessible Design for Products, Services, and Processes. CRC Press/Taylor & Francis Group, 2008.
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