APA (7th ed.) Citation

Bolt, B. a. N., Burton, R. R., & Brown, J. S. (1977). Semantic Grammar: A Technique for Constructing Natural Language Interfaces to Instructional Systems.

Chicago Style (17th ed.) Citation

Bolt, Beranek and Newman, Richard R. Burton, and John Seely Brown. Semantic Grammar: A Technique for Constructing Natural Language Interfaces to Instructional Systems. 1977.

MLA (9th ed.) Citation

Bolt, Beranek and Newman, et al. Semantic Grammar: A Technique for Constructing Natural Language Interfaces to Instructional Systems. 1977.