APA (7th ed.) Citation

Powers, D. L. (1979). Boundary value problems (2. ed.). Acad. Press.

Chicago Style (17th ed.) Citation

Powers, David Leusch. Boundary Value Problems. 2. ed. New York [u.a.]: Acad. Press, 1979.

MLA (9th ed.) Citation

Powers, David Leusch. Boundary Value Problems. 2. ed. Acad. Press, 1979.