APA (7th ed.) Citation

Ng, F., Butler, G., & Kay, J. (1995). An intelligent tutoring system for the Dijkstra-Gries methodology. IEEE Transactions on Software Engineering, 21, 415. https://doi.org/10.1109/32.387471

Chicago Style (17th ed.) Citation

Ng, Frank, Gregory Butler, and Judy Kay. "An Intelligent Tutoring System for the Dijkstra-Gries Methodology." IEEE Transactions on Software Engineering 21 (1995): 415. https://doi.org/10.1109/32.387471.

MLA (9th ed.) Citation

Ng, Frank, et al. "An Intelligent Tutoring System for the Dijkstra-Gries Methodology." IEEE Transactions on Software Engineering, vol. 21, 1995, p. 415, https://doi.org/10.1109/32.387471.