APA (7th ed.) Citation

Codling, R. (1997). Developing a running attitude. X's & O's, 4(2), 17.

Chicago Style (17th ed.) Citation

Codling, R. "Developing a Running Attitude." X's & O's 4, no. 2 (1997): 17.

MLA (9th ed.) Citation

Codling, R. "Developing a Running Attitude." X's & O's, vol. 4, no. 2, 1997, p. 17.