Cita APA

Newell, A., & Simon, H. A. (1972). Human problem solving. Prentice Hall.

Chicago Edition Citation

Newell, Allen, i Herbert A. Simon. Human Problem Solving. New Jersey: Prentice Hall, 1972.

Cita MLA

Newell, Allen, i Herbert A. Simon. Human Problem Solving. Prentice Hall, 1972.