Aprepositional phrase can function in a sentence as

an adverb phrase
a noun phrase

What is wrong with they follow citation of a book with two authors

In the declaration of independence, thomas jefferson states that governments derive their power from

Part 7: the strange case of dr. jekyll and mr. hyde: cresolutionpre-testactivewhat is the resolution of the strange case of dr. jekyll and mr. hyde? o utterson enters the lab.o poole finds a dead body.o mr. hyde writes a confession.o dr. jekyll and mr. hyde die.