APA (7th ed.) Citation

Dunn, S., & Spector, L. (2003). Pain-Free Windows Tweaks. PCWorld, 21(8), 113.

Chicago Style (17th ed.) Citation

Dunn, Scott, and Lincoln Spector. "Pain-Free Windows Tweaks." PCWorld 21, no. 8 (2003): 113.

MLA (9th ed.) Citation

Dunn, Scott, and Lincoln Spector. "Pain-Free Windows Tweaks." PCWorld, vol. 21, no. 8, 2003, p. 113.