Penggayaan APA
Roberts. (2014).
How adam smith can change your life .
Great Britain:
Penguin Random House.
Chicago Style
Roberts.
How adam smith can change your life.
Great Britain:
Penguin Random House,
2014.
Text.
MLA Style
Roberts.
How adam smith can change your life.
Great Britain:
Penguin Random House,
2014.
Text.
Turabian Style
Roberts.
How adam smith can change your life.
Great Britain:
Penguin Random House,
2014.
Print.