Gaya APA
Pallis, A, A., Langen, P, W, D. (2010).
Seaports and the structural implications of the economic crisis .
greece:
Elsevier.
Gaya MLA
Pallis, Athanasios, A.., Langen, Peter, W., De.
"Seaports and the structural implications of the economic crisis".
greece:
Elsevier,
2010.
Article.