APA (7 वां संस्करण) प्रशस्ति पत्र
Piaggio, H. T. H. (1928). An elementary treatise on differential equations and their applications (New ed., rev. and enl.). G. Bell.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Piaggio, H. T. H. An Elementary Treatise on Differential Equations and Their Applications. New ed., rev. and enl. London: G. Bell, 1928.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Piaggio, H. T. H. An Elementary Treatise on Differential Equations and Their Applications. New ed., rev. and enl. G. Bell, 1928.
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