APA-Zitierstil (7. Ausg.)

Robertson, I. (2001). Problem solving (1a. ed.). Psychology press.

Chicago-Zitierstil (17. Ausg.)

Robertson, Ian. Problem Solving. 1a. ed. Filadelfia: Psychology press, 2001.

MLA-Zitierstil (9. Ausg.)

Robertson, Ian. Problem Solving. 1a. ed. Psychology press, 2001.