APA (7th ed.) Citation

Piegl, L. (1989). Key developments in computer-aided geometric design. Computer aided design, 21(5), 262-273. https://doi.org/10.1016/0010-4485(89)90032-8

Chicago Style (17th ed.) Citation

Piegl, L. "Key Developments in Computer-aided Geometric Design." Computer Aided Design 21, no. 5 (1989): 262-273. https://doi.org/10.1016/0010-4485(89)90032-8.

MLA (9th ed.) Citation

Piegl, L. "Key Developments in Computer-aided Geometric Design." Computer Aided Design, vol. 21, no. 5, 1989, pp. 262-273, https://doi.org/10.1016/0010-4485(89)90032-8.