APA (7th ed.) Citation

Ledgard, H. (1980). ADA: An introd. ADA reference manual July 1980. Springer.

Chicago Style (17th ed.) Citation

Ledgard, Henry. ADA: An Introd. ADA Reference Manual July 1980. New York: Springer, 1980.

MLA (9th ed.) Citation

Ledgard, Henry. ADA: An Introd. ADA Reference Manual July 1980. Springer, 1980.