APA (7th ed.) Citation

Kovach, L. D. (1984). Boundary-value problems. Addison-Wesley.

Chicago Style (17th ed.) Citation

Kovach, Ladis D. Boundary-value Problems. Reading: Addison-Wesley, 1984.

MLA (9th ed.) Citation

Kovach, Ladis D. Boundary-value Problems. Addison-Wesley, 1984.