APA (7th ed.) Citation

Scha, R. J. H. (1983). Logical foundations for question answering. Philips Research Laboratories.

Chicago Style (17th ed.) Citation

Scha, Remko J. H. Logical Foundations for Question Answering. Eindhoven, the Netherlands: Philips Research Laboratories, 1983.

MLA (8th ed.) Citation

Scha, Remko J. H. Logical Foundations for Question Answering. Philips Research Laboratories, 1983.