APA (7th ed.) Citation

Spring, T., & Albro, E. N. (2005). Spam Law Test. PCWorld, 23(1), 20.

Chicago Style (17th ed.) Citation

Spring, Tom, and Edward N. Albro. "Spam Law Test." PCWorld 23, no. 1 (2005): 20.

MLA (9th ed.) Citation

Spring, Tom, and Edward N. Albro. "Spam Law Test." PCWorld, vol. 23, no. 1, 2005, p. 20.