APA (7 वां संस्करण) प्रशस्ति पत्र
Kant, I. (1974). On the old saw: That may be right in theory but it won't work in practice. University of Pennsylvania Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Kant, Immanuel. On the Old Saw: That May Be Right in Theory but It Won't Work in Practice. Philadelphia: University of Pennsylvania Press, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Kant, Immanuel. On the Old Saw: That May Be Right in Theory but It Won't Work in Practice. University of Pennsylvania Press, 1974.
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