Miller, W. (1977). Symmetry and separation of variables. Addison-Wesley.
Cita Chicago (17th ed.)Miller, Willard. Symmetry and Separation of Variables. Reading, Mass: Addison-Wesley, 1977.
Cita MLA (9th ed.)Miller, Willard. Symmetry and Separation of Variables. Addison-Wesley, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.