Austria-Hungary : Population density of Jugo-slavia.
MLA
Austria-Hungary : Population Density of Jugo-Slavia. s.n., 1919. https://collections.library.yale.edu/catalog/15238149.
APA, 6th edition
Austria-Hungary : Population density of Jugo-slavia. (1919). [Maps]. s.n., https://collections.library.yale.edu/catalog/15238149.