APA-referens (7:e uppl.)

Norin, S., Scott, A., Seymour, P., & Wood, D. (2019). Clustered colouring in minor-closed classes. Springer.

Chicago-referens (17:e uppl.)

Norin, S., A. Scott, P. Seymour, och DR Wood. Clustered Colouring in Minor-closed Classes. Springer, 2019.

MLA-referens (9:e uppl.)

Norin, S., et al. Clustered Colouring in Minor-closed Classes. Springer, 2019.