APA (7th ed.) Citation

Sager, N. (1981). Natural language information processing: A computer grammar of English and its application. Addison-Wesley.

Chicago Style (17th ed.) Citation

Sager, Naomi. Natural Language Information Processing: A Computer Grammar of English and Its Application. Reading, Mass: Addison-Wesley, 1981.

MLA (9th ed.) Citation

Sager, Naomi. Natural Language Information Processing: A Computer Grammar of English and Its Application. Addison-Wesley, 1981.