APA (7th ed.) Citation

(1980). Context-free grammars: Covers, normal forms, and parsing / Anton Nijholt.

Chicago Style (17th ed.) Citation

Context-free Grammars: Covers, Normal Forms, and Parsing / Anton Nijholt. 1980.

MLA (9th ed.) Citation

Context-free Grammars: Covers, Normal Forms, and Parsing / Anton Nijholt. 1980.

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