Gustafson, K. E. (1999). Introduction to partial differential equations and Hilbert space methods.- 3rd ed. (3rd ed., rev.). Dover Publications.
শিকাগো স্টাইলে সাইটেশনGustafson, Karl E. Introduction to Partial Differential Equations and Hilbert Space Methods.- 3rd Ed. 3rd ed., rev. Mineola, N.Y.: Dover Publications, 1999.
এমএলএ সাইটেশনGustafson, Karl E. Introduction to Partial Differential Equations and Hilbert Space Methods.- 3rd Ed. 3rd ed., rev. Dover Publications, 1999.
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