APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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