APA (7th ed.) Citation

Cullingford, R. E. (1986). Natural language processing: A knowledge-engineering approach. Rowman & Littlefield.

Chicago Style (17th ed.) Citation

Cullingford, Richard E. Natural Language Processing: A Knowledge-engineering Approach. Totowa, N.J.: Rowman & Littlefield, 1986.

MLA (8th ed.) Citation

Cullingford, Richard E. Natural Language Processing: A Knowledge-engineering Approach. Rowman & Littlefield, 1986.