Παραπομπή σε μορφή APA (7η εκδ.)

Xuereb, P. (2003). Euro-Mediterranean integration and the "Ring of Friends". European Documentation and Research Centre, University of Malta.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Xuereb, Peter. Euro-Mediterranean Integration and the "Ring of Friends". [s.l.]: European Documentation and Research Centre, University of Malta, 2003.

Παραπομπή σε μορφή MLA (8th εκδ.)

Xuereb, Peter. Euro-Mediterranean Integration and the "Ring of Friends". European Documentation and Research Centre, University of Malta, 2003.