Miller, W. (1977). Symmetry and separation of variables. Addison-Wesley.
Lua i Stíl Chicago (17ú heag.)Miller, Willard. Symmetry and Separation of Variables. Reading, Mass: Addison-Wesley, 1977.
Lua MLA (9ú heag.)Miller, Willard. Symmetry and Separation of Variables. Addison-Wesley, 1977.
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