Παραπομπή σε μορφή APA (7η εκδ.)

Birman, M. S. (1991). Estimates and asymptotics for discrete spectra of integral and differential equations. American Mathematical Society.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Birman, M. Sh. Estimates and Asymptotics for Discrete Spectra of Integral and Differential Equations. Providence, R.I.: American Mathematical Society, 1991.

Παραπομπή σε μορφή MLA (9th εκδ.)

Birman, M. Sh. Estimates and Asymptotics for Discrete Spectra of Integral and Differential Equations. American Mathematical Society, 1991.