APA (7th ed.) Citation

Barber, C. B., Dobkin, D. P., & Huhdanpaa, H. The quickhull algorithm for convex hulls. ACM transactions on mathematical software..

Chicago Style (17th ed.) Citation

Barber, C. Bradford, David P. Dobkin, and Hannu Huhdanpaa. "The Quickhull Algorithm for Convex Hulls." ACM Transactions on Mathematical Software. .

MLA (9th ed.) Citation

Barber, C. Bradford, et al. "The Quickhull Algorithm for Convex Hulls." ACM Transactions on Mathematical Software., .

Warning: These citations may not always be 100% accurate.