Παραπομπή APA

Bitsadze, A. B. (1968). Boundary value problems. North-Holland Publishing Co..

Παραπομπή Chicago Style

Bitsadze, A. B. Boundary Value Problems. Amsterdam: North-Holland Publishing Co., 1968.

Παραπομπή MLA

Bitsadze, A. B. Boundary Value Problems. North-Holland Publishing Co., 1968.