APA (7th ed.) Citation

De Clercq, J. (2011). Active Directory. Windows IT Pro, 17(11), 30.

Chicago Style (17th ed.) Citation

De Clercq, Jan. "Active Directory." Windows IT Pro 17, no. 11 (2011): 30.

MLA (9th ed.) Citation

De Clercq, Jan. "Active Directory." Windows IT Pro, vol. 17, no. 11, 2011, p. 30.