Cita APA (7a ed.)

(1991). Sturm-Liouville and Dirac operators / by B.M. Levitan, I.S. Sargsjan ; [translated from the Russian by Oleg Efimov].

Cita Chicago Style (17a ed.)

Sturm-Liouville and Dirac Operators / by B.M. Levitan, I.S. Sargsjan ; [translated from the Russian by Oleg Efimov]. 1991.

Cita MLA (9a ed.)

Sturm-Liouville and Dirac Operators / by B.M. Levitan, I.S. Sargsjan ; [translated from the Russian by Oleg Efimov]. 1991.