Gaya APA
Hilmola, O., Henttu, V. (2014).
Border-crossing constraints, railways and transit transports in Estonia .
Finlandia:
Elsevier.
Gaya MLA
Hilmola, Olli-Pekka., Henttu, Ville.
"Border-crossing constraints, railways and transit transports in Estonia".
Finlandia:
Elsevier,
2014.
Article.