Cita APA

Levitan, B. M., & Sargsian, I. S. (1975). Introduction to spectral theory: Selfadjoint ordinary differential operators. American Mathematical Society.

Citación estilo Chicago

Levitan, Boris Moiseevich., and I. S. Sargsian. Introduction to Spectral Theory: Selfadjoint Ordinary Differential Operators. Providence: American Mathematical Society, 1975.

Cita MLA

Levitan, Boris Moiseevich., and I. S. Sargsian. Introduction to Spectral Theory: Selfadjoint Ordinary Differential Operators. Providence: American Mathematical Society, 1975.