The format for citing depends on the style your instructor has requested for your research paper. MLA and APA are the most common styles used at LCCC. MLA examples are linked below.
APA Style
Print Ad:
Name of Company. (year, Month day). Title of advertisement [Advertisement]. Title of Magazine/Newspaper, volume(issue), page number.
Online Ad:
Name of Company. (year, Month day). Title of advertisement [Advertisement]. Site name. URL
The University of Wisconsin, Milwaukee LibGuide "How do I cite - advertisements?" has good examples for APA.