You do in parentheses like this ( authors last name,and page number)
I believe it is the first one im sorry if im wrong
Throughout the novel there are circumstances in which Gatsby shows he is modern such as his clothes, his car and even his house. These are all things that are different from other for example Tom who is old fashioned and the opposite of Gatsby.
A catalog entry of writing under its author's name, most of the time, with the surname placed first.
