Barzanti, S. (1965). The underdeveloped areas within the common market. Princeton University.
Chicago-viite (17. p.)Barzanti, Sergio. The Underdeveloped Areas Within the Common Market. Princeton: Princeton University, 1965.
MLA-viite (9. p.)Barzanti, Sergio. The Underdeveloped Areas Within the Common Market. Princeton University, 1965.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.