Cita APA (7a ed.)

Murphy, D. T. (1997). The heroic earth: Geopolitical thought in Weimar Germany, 1918-1933. Kent State University Press.

Cita Chicago Style (17a ed.)

Murphy, David Thomas. The Heroic Earth: Geopolitical Thought in Weimar Germany, 1918-1933. Kent, Ohio [etc.]: Kent State University Press, 1997.

Cita MLA (9a ed.)

Murphy, David Thomas. The Heroic Earth: Geopolitical Thought in Weimar Germany, 1918-1933. Kent State University Press, 1997.