APA (7th ed.) Citation

Bartels, R. H., Beatty, J. C., & Barsky, B. A. (1987). An introduction to splines for use in computer graphics and geometric modelling. Kaufmann.

Chicago Style (17th ed.) Citation

Bartels, Richard H., John C. Beatty, and Brian A. Barsky. An Introduction to Splines for Use in Computer Graphics and Geometric Modelling. Los Altos, Calif: Kaufmann, 1987.

MLA (9th ed.) Citation

Bartels, Richard H., et al. An Introduction to Splines for Use in Computer Graphics and Geometric Modelling. Kaufmann, 1987.