APA (7th ed.) Citation

Allen, B. L. (1996). Information tasks: Toward a user-centered approach to information systems. Academic Press.

Chicago Style (17th ed.) Citation

Allen, Bryce L. Information Tasks: Toward a User-centered Approach to Information Systems. San Diego, Calif: Academic Press, 1996.

MLA (9th ed.) Citation

Allen, Bryce L. Information Tasks: Toward a User-centered Approach to Information Systems. Academic Press, 1996.

Warning: These citations may not always be 100% accurate.