Digraphs

MLA

Bang-Jensen, Jørgen, Gregory Z Gutin, and Unspecified. Digraphs. Springer London, 2009.

APA

Bang-Jensen, J., Gutin, G. Z, & Unspecified, U. (2009). Digraphs. Springer London.

Chicago

Bang-Jensen, Jørgen, Jørgen Bang-Jensen, Gregory Z Gutin, and Unspecified. Digraphs. : Springer London, 2009.