Gaya APA

ATHANASSIOU, M., BARROS, C, P. (2004). Efficiency in European seaports with DEA: evidence from greece and Portugal . United Kingdom: Elsevier.

Gaya MLA

ATHANASSIOU, MANOLIS., BARROS, CARLOS, PESTANA. "Efficiency in European seaports with DEA: evidence from greece and Portugal". United Kingdom: Elsevier, 2004. Article.