APA (7th ed.) Citation

Ledgard, H. F. (1983). Ada, an introduction (2nd ed.). Springer-Verlag.

Chicago Style (17th ed.) Citation

Ledgard, Henry F. Ada, an Introduction. 2nd ed. New York: Springer-Verlag, 1983.

MLA (9th ed.) Citation

Ledgard, Henry F. Ada, an Introduction. 2nd ed. Springer-Verlag, 1983.