APA (7th ed.) Citation

Colson, C., & Vaughn, E. (1989). Living in the new dark ages. Christianity Today, 33(15), 30.

Chicago Style (17th ed.) Citation

Colson, C., and E.S Vaughn. "Living in the New Dark Ages." Christianity Today 33, no. 15 (1989): 30.

MLA (9th ed.) Citation

Colson, C., and E.S Vaughn. "Living in the New Dark Ages." Christianity Today, vol. 33, no. 15, 1989, p. 30.