Παραπομπή σε μορφή APA (7η εκδ.)

Foote, H. United States policy towards El Salvador: September 1979-to the present. Washington Office.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Foote, Heather. United States Policy Towards El Salvador: September 1979-to the Present. Washington: Washington Office.

Παραπομπή σε μορφή MLA (9th εκδ.)

Foote, Heather. United States Policy Towards El Salvador: September 1979-to the Present. Washington Office.