Cita APA (7a ed.)
Spengler, O. (1965). The decline of the West (Primera edición de Modern Library.). Modern Library.
Cita Chicago Style (17a ed.)
Spengler, Oswald. The Decline of the West. Primera edición de Modern Library. Nueva York: Modern Library, 1965.
Cita MLA (9a ed.)
Spengler, Oswald. The Decline of the West. Primera edición de Modern Library. Modern Library, 1965.
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