Παραπομπή σε μορφή APA (7η εκδ.)

Roberts, F. S. (1978). Graph theory and its applications to problems of society. Society for Industrial and Applied Mathematics.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Roberts, Fred S. Graph Theory and Its Applications to Problems of Society. Philadelphia: Society for Industrial and Applied Mathematics, 1978.

Παραπομπή σε μορφή MLA (9th εκδ.)

Roberts, Fred S. Graph Theory and Its Applications to Problems of Society. Society for Industrial and Applied Mathematics, 1978.