Osmena, S. (1940). Economica ning Pilipinas at ing pamakilibayan nang kalakal karing aliwang bansa. s.n.
Chicago Style (17th ed.) CitationOsmena, Sergio. Economica Ning Pilipinas at Ing Pamakilibayan Nang Kalakal Karing Aliwang Bansa. s.l: s.n, 1940.
MLA (9th ed.) CitationOsmena, Sergio. Economica Ning Pilipinas at Ing Pamakilibayan Nang Kalakal Karing Aliwang Bansa. s.n, 1940.
Warning: These citations may not always be 100% accurate.