APA (7th ed.) Citation

Nygard, R. (1977). Personality, situation, and persistence: A study with emphasis on achievement motivation. Universitetsforlaget.

Chicago Style (17th ed.) Citation

Nygard, Roald. Personality, Situation, and Persistence: A Study with Emphasis on Achievement Motivation. Oslo [u.a.]: Universitetsforlaget, 1977.

MLA (9th ed.) Citation

Nygard, Roald. Personality, Situation, and Persistence: A Study with Emphasis on Achievement Motivation. Universitetsforlaget, 1977.