Dyfyniad APA

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

Dyfyniad Arddull Chicago

Newell, Allen, and Herbert A. Simon. Human Problem Solving. Englewood Cliffs: Prentice-Hall of India, 1972.

Dyfyniad MLA

Newell, Allen, and Herbert A. Simon. Human Problem Solving. Prentice-Hall of India, 1972.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.