APA
Allen W., . (1941). The Ukraine : a history. Cambridge: At the University Press.
Chicago
Allen W.E.D, . 1941. The Ukraine : a history. Cambridge: At the University Press.
Harvard
Allen W., . (1941). The Ukraine : a history. Cambridge: At the University Press.
MLA
Allen W.E.D, . The Ukraine : a history. Cambridge: At the University Press. 1941.
