Cita APA

Leuchtenburg, W. E. (2015). American president: From Teddy Roosevelt to Bill Clinton. OUP.

Chicago Edition Citation

Leuchtenburg, William E. American President: From Teddy Roosevelt to Bill Clinton. Oxford: OUP, 2015.

Cita MLA

Leuchtenburg, William E. American President: From Teddy Roosevelt to Bill Clinton. OUP, 2015.