There's images on Google?!
When you're quoting a source directly.
When you're paraphrasing another's idea.
When you're mentioning an idea that is not your own.
All of the above
In conclusion, Anerd (2009) has shown that Miss Piggy and Kermit the Frog's relationship subverts heteronormative gender roles.
As further proof of Jim Henson's cultural impact, Anerd (2009) contends that, due to Miss Piggy and Kermit's example, frog-pig unions became more broadly accepted throughout American society.
While Miss Piggy and Kermit the Frog's relationship subverts traditional gender roles, it also paves the way for widespread social acceptance of interspecies relationships (Anerd, 2009).