Wirthwein, W. G. (1935). Britain and the Balkan crisis 1875-1878. Columbia University.
Cita Chicago Style (17a ed.)Wirthwein, Walter G. Britain and the Balkan Crisis 1875-1878. New York: Columbia University, 1935.
Cita MLA (9a ed.)Wirthwein, Walter G. Britain and the Balkan Crisis 1875-1878. Columbia University, 1935.
Precaución: Estas citas no son 100% exactas.