Generally, you need to cite in TWO places:

• In your writing where you
  • Quote
  • Paraphrase
  • Summarize
  • Use or refer to specific audiovisual representations (data, images, tables, figures, video clips, podcasts, performances, etc.)

• In a list of sources at the end of your paper, called
  • References(APA)
  • Works Cited(MLA)
  • Bibliography(Chicago)

If you list a source only in the list of sources, it is a form of plagiarism.