Beyer, H., & Holtzblatt, K. (1998). Contextual design: Defining customer-centered systems. Morgan Kaufmann.
Chicago Style (17th ed.) CitationBeyer, Hugh, and Karen Holtzblatt. Contextual Design: Defining Customer-centered Systems. San Francisco, Calif.: Morgan Kaufmann, 1998.
MLA (9th ed.) CitationBeyer, Hugh, and Karen Holtzblatt. Contextual Design: Defining Customer-centered Systems. Morgan Kaufmann, 1998.
Warning: These citations may not always be 100% accurate.