APA (7th ed.) Citation

Tillmann, U., HPC, & HPC. (2000). Combinatorics of the surface category and Tqfts.

Chicago Style (17th ed.) Citation

Tillmann, U., HPC, and HPC. Combinatorics of the Surface Category and Tqfts. 2000.

MLA (9th ed.) Citation

Tillmann, U., et al. Combinatorics of the Surface Category and Tqfts. 2000.

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