APA (7th ed.) Citation

Tennant, H. (1981). Natural language processing: An introduction to an emerging technology. PBI.

Chicago Style (17th ed.) Citation

Tennant, Harry. Natural Language Processing: An Introduction to an Emerging Technology. New York: PBI, 1981.

MLA (9th ed.) Citation

Tennant, Harry. Natural Language Processing: An Introduction to an Emerging Technology. PBI, 1981.

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