APA (7th ed.) Citation

JB, P. (2009). Socialism and classification. American Libraries, 40(11), 12.

Chicago Style (17th ed.) Citation

JB, Post. "Socialism and Classification." American Libraries 40, no. 11 (2009): 12.

MLA (9th ed.) Citation

JB, Post. "Socialism and Classification." American Libraries, vol. 40, no. 11, 2009, p. 12.