APA (7th ed.) Citation

Keil, F. C. (1979). Semantic and Conceptual Development: An Ontological Perspective. Harvard University Press. https://doi.org/10.4159/harvard.9780674181816

Chicago Style (17th ed.) Citation

Keil, Frank C. Semantic and Conceptual Development: An Ontological Perspective. Cambridge, Mass: Harvard University Press, 1979. https://doi.org/10.4159/harvard.9780674181816.

MLA (9th ed.) Citation

Keil, Frank C. Semantic and Conceptual Development: An Ontological Perspective. Harvard University Press, 1979. https://doi.org/10.4159/harvard.9780674181816.