APA (7 वां संस्करण) प्रशस्ति पत्र
Chabrowski, J. (1997). Variational methods for potential operator equations: With applications to nonlinear elliptic equations. Walter de Gruyter.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Chabrowski, Jan. Variational Methods for Potential Operator Equations: With Applications to Nonlinear Elliptic Equations. New York: Walter de Gruyter, 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Chabrowski, Jan. Variational Methods for Potential Operator Equations: With Applications to Nonlinear Elliptic Equations. Walter de Gruyter, 1997.
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