Balas, P. (1992). Progress in angiology 1991: Selected scientific communications of the 7th European Congress of the International Union of Angiology, erd Mediterranean Congress of Angiology, Rhodes (Greece), May 26-31, 1991. Minerva Medica.
Παραπομπή σε μορφή Chicago (17η εκδ.)Balas, P. Progress in Angiology 1991: Selected Scientific Communications of the 7th European Congress of the International Union of Angiology, Erd Mediterranean Congress of Angiology, Rhodes (Greece), May 26-31, 1991. Torino: Minerva Medica, 1992.
Παραπομπή σε μορφή MLA (8th εκδ.)Balas, P. Progress in Angiology 1991: Selected Scientific Communications of the 7th European Congress of the International Union of Angiology, Erd Mediterranean Congress of Angiology, Rhodes (Greece), May 26-31, 1991. Minerva Medica, 1992.
