Bolc, L. (1980). Natural language question answering systems. Hanser ; Macmillan.
Chicago Style (17th ed.) CitationBolc, Leonard. Natural Language Question Answering Systems. Munchen : London: Hanser ; Macmillan, 1980.
MLA (9th ed.) CitationBolc, Leonard. Natural Language Question Answering Systems. Hanser ; Macmillan, 1980.
Warning: These citations may not always be 100% accurate.