Παραπομπή σε μορφή APA (7η εκδ.)

Sobolev, A. V. (2012). Pseudo-differential operators with discontinuous symbols: Widom's conjecture. American Mathematical Society.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Sobolev, A. V. Pseudo-differential Operators with Discontinuous Symbols: Widom's Conjecture. Providence, R. I.: American Mathematical Society, 2012.

Παραπομπή σε μορφή MLA (9th εκδ.)

Sobolev, A. V. Pseudo-differential Operators with Discontinuous Symbols: Widom's Conjecture. American Mathematical Society, 2012.