If it already has the souce before it like for example it says " According to blank "Evidence" You still have to put the parentheses even though it is still there.
Because if you do just choose you will probably will just choose and not even look at the other sampling. i hope that helps
General Zaroff sees pain and suffering as something pleasurable. He believes that he is a god and that he can surpass anything. He is rich and is one of the most respectable people in the military. He sees hunting as an adrenaline rush. He sought to kill the bigger games just to feed the rush in his system. He will kill animals or humans, he can't tell between animals or humans due to his hunger for hunting.