APA (7th ed.) Citation

Marcotty, M., & Ledgard, H. (1987). The world of programming languages. Springer.

Chicago Style (17th ed.) Citation

Marcotty, Michael, and Henry Ledgard. The World of Programming Languages. New York [u.a.]: Springer, 1987.

MLA (9th ed.) Citation

Marcotty, Michael, and Henry Ledgard. The World of Programming Languages. Springer, 1987.

Warning: These citations may not always be 100% accurate.