APA Style

Thorpe, Edgar, Lees- John D.. (). The political system of the United States . : .

Chicago Style

Thorpe, Edgar, Lees- John D.. The political system of the United States. : , . .

MLA Style

Thorpe, Edgar, Lees- John D.. The political system of the United States. : , . .

Turabian Style

Thorpe, Edgar, Lees- John D.. The political system of the United States. : , . .