APA (7th ed.) Citation

Blankenship, S. E. (1985). Incubation and induced fixation in problem solving. [publisher not identified].

Chicago Style (17th ed.) Citation

Blankenship, Steven Edwin. Incubation and Induced Fixation in Problem Solving. [Place of publication not identified]: [publisher not identified], 1985.

MLA (9th ed.) Citation

Blankenship, Steven Edwin. Incubation and Induced Fixation in Problem Solving. [publisher not identified], 1985.