APA (7th ed.) Citation

Smith, M. (2012). Making a Difference. Public Libraries, 51(4), 34.

Chicago Style (17th ed.) Citation

Smith, Mark. "Making a Difference." Public Libraries 51, no. 4 (2012): 34.

MLA (9th ed.) Citation

Smith, Mark. "Making a Difference." Public Libraries, vol. 51, no. 4, 2012, p. 34.