APA (7th ed.) Citation

Bit︠s︡adze, A. V. (1968). Boundary value problems for second order elliptic equations. North-Holland Pub. Co..

Chicago Style (17th ed.) Citation

Bit︠s︡adze, A. V. Boundary Value Problems for Second Order Elliptic Equations. Amsterdam: North-Holland Pub. Co., 1968.

MLA (9th ed.) Citation

Bit︠s︡adze, A. V. Boundary Value Problems for Second Order Elliptic Equations. North-Holland Pub. Co., 1968.