Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Sager, Naomi. Natural Language Information Processing: A Computer Grammar of English and Its Applications. Reading, Massachusetts [etc.]: Addison-Wesley, 1981.

Cita MLA (9a ed.)

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