Siemianowski, J. (2013). Norwegian plans for shipping cooperation with Poland in 1919. [s.n.].
Citazione stile Chigago Style (17a edizione)Siemianowski, Jordan. Norwegian Plans for Shipping Cooperation with Poland in 1919. Bergen: [s.n.], 2013.
Citatione MLA (9a ed.)Siemianowski, Jordan. Norwegian Plans for Shipping Cooperation with Poland in 1919. [s.n.], 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.