APA ציטוט

Bang-jensen, J., & Gultin, G. (2006). Digraphs.

Chicago Edition Citation

Bang-jensen, Jorgen, and Gregory Gultin. Digraphs. Springer-Verlag, London, 2006.

ציטוט MLA

Bang-jensen, Jorgen, and Gregory Gultin. Digraphs. 2006.