APA (7th ed.) Citation

Spieth, W. R. (1971). Skill level and adaptation to a rearranged visual environment. [publisher not identified].

Chicago Style (17th ed.) Citation

Spieth, William Robert. Skill Level and Adaptation to a Rearranged Visual Environment. [Place of publication not identified]: [publisher not identified], 1971.

MLA (9th ed.) Citation

Spieth, William Robert. Skill Level and Adaptation to a Rearranged Visual Environment. [publisher not identified], 1971.