Cita APA (7th ed.)
Gatzke, H. W. (1965). The present in perspective: A look at the world since 1945 (3d ed.). Rand McNally.
Cita Chicago (17th ed.)
Gatzke, Hans Wilhelm. The Present in Perspective: A Look at the World Since 1945. 3d ed. Chicago: Rand McNally, 1965.
Cita MLA (9th ed.)
Gatzke, Hans Wilhelm. The Present in Perspective: A Look at the World Since 1945. 3d ed. Rand McNally, 1965.
Atenció: Aquestes cites poden no estar 100% correctes.