APA (7. basım) Alıntı

Agra, A. C. (2005). Unitary government and federal form of government.

Chicago Style (17. basım) Atıf

Agra, Alberto C. Unitary Government and Federal Form of Government. Makati City: Ateneo de Manila University, 2005.

MLA (9th ed.) Atıf

Agra, Alberto C. Unitary Government and Federal Form of Government. 2005.