APA (7th ed.) Citation

Wirth. (1991). Algorithms + data structures = programs. Prentice Hall of India.

Chicago Style (17th ed.) Citation

Wirth. Algorithms + Data Structures = Programs. New Delhi: Prentice Hall of India, 1991.

MLA (9th ed.) Citation

Wirth. Algorithms + Data Structures = Programs. Prentice Hall of India, 1991.

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