APA (7th ed.) Citation

Perkins, R. L. (1985). The Concept of anxiety. Mercer.

Chicago Style (17th ed.) Citation

Perkins, Robert L. The Concept of Anxiety. Macon, Ga.: Mercer, 1985.

MLA (9th ed.) Citation

Perkins, Robert L. The Concept of Anxiety. Mercer, 1985.

Warning: These citations may not always be 100% accurate.