APA (7th ed.) Citation

Stephens, S. (2011). City challenge. Museums Journal, 111(4), 34.

Chicago Style (17th ed.) Citation

Stephens, Simon. "City Challenge." Museums Journal 111, no. 4 (2011): 34.

MLA (9th ed.) Citation

Stephens, Simon. "City Challenge." Museums Journal, vol. 111, no. 4, 2011, p. 34.