APA (7th ed.) Citation

Hoare, C. (1999). Theories of Programming: Top−Down and Bottom−Up and Meeting in the Middle.

Chicago Style (17th ed.) Citation

Hoare, C. Theories of Programming: Top−Down and Bottom−Up and Meeting in the Middle. 1999.

MLA (9th ed.) Citation

Hoare, C. Theories of Programming: Top−Down and Bottom−Up and Meeting in the Middle. 1999.

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