APA (7th ed.) Citation

Newell, A. (1994). Unified theories of cognition (3. print.). Harvard Univ. Press.

Chicago Style (17th ed.) Citation

Newell, Allen. Unified Theories of Cognition. 3. print. Cambridge, Mass. u.a: Harvard Univ. Press, 1994.

MLA (9th ed.) Citation

Newell, Allen. Unified Theories of Cognition. 3. print. Harvard Univ. Press, 1994.