APA

(1967). The writings of Theodore Roosevelt. Indianapolis [u.a.]: Bobbs-Merrill.

Chicago

1967. The writings of Theodore Roosevelt. Indianapolis [u.a.]: Bobbs-Merrill.

Harvard

(1967). The writings of Theodore Roosevelt. Indianapolis [u.a.]: Bobbs-Merrill.

MLA

The writings of Theodore Roosevelt. Indianapolis [u.a.]: Bobbs-Merrill. 1967.