APA (7th ed.) Citation

Knapp, P. I. (1990). Exercise anxiety of trained asthmatic and nonasthmatic middle school females. [publisher not identified].

Chicago Style (17th ed.) Citation

Knapp, Phyllis Irene. Exercise Anxiety of Trained Asthmatic and Nonasthmatic Middle School Females. [Place of publication not identified]: [publisher not identified], 1990.

MLA (9th ed.) Citation

Knapp, Phyllis Irene. Exercise Anxiety of Trained Asthmatic and Nonasthmatic Middle School Females. [publisher not identified], 1990.