Verne, Jules
The castle of the carpathians
Qanita, 2017
Buku Teks SO
Ocioszynski, Tadeusz
Poland on the Baltic
Polonia Pub. House , 1960
Buku Teks SO
Kulinski, Karol
Carbon cycling in the Baltic Sea
Springer, 2012
eBooks
Biological Oceanography of the Baltic Sea
Springer Nature, 2017
eBooks
Tarulis, Albert N.
Soviet Policy toward the Baltic State 1918 - 1940
University of Notre Dame Press, 1959
Buku Teks