Παραπομπή σε μορφή APA (7η εκδ.)

Harper, F. A. (1949). Liberty, a path to its recovery. Foundation for Economic Education.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Harper, F. A. Liberty, a Path to Its Recovery. Irvington-on-Hudson, N.Y: Foundation for Economic Education, 1949.

Παραπομπή σε μορφή MLA (8th εκδ.)

Harper, F. A. Liberty, a Path to Its Recovery. Foundation for Economic Education, 1949.