APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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