APA (7th ed.) Citation

Nagel, C. F. (2001). The effect of relaxation training, video-observation, and mental imagery upon the reduction of freestyle swimming errors of youth competitive female swimmers. [publisher not identified].

Chicago Style (17th ed.) Citation

Nagel, Courtney F. The Effect of Relaxation Training, Video-observation, and Mental Imagery upon the Reduction of Freestyle Swimming Errors of Youth Competitive Female Swimmers. [Place of publication not identified]: [publisher not identified], 2001.

MLA (9th ed.) Citation

Nagel, Courtney F. The Effect of Relaxation Training, Video-observation, and Mental Imagery upon the Reduction of Freestyle Swimming Errors of Youth Competitive Female Swimmers. [publisher not identified], 2001.