APA (7th ed.) Citation

Robinson, D. F., & Foulds, L. R. (1980). Digraphs: Theory and techniques. Gordon and Breach.

Chicago Style (17th ed.) Citation

Robinson, David F., and Lesley R. Foulds. Digraphs: Theory and Techniques. New York (u.a.): Gordon and Breach, 1980.

MLA (9th ed.) Citation

Robinson, David F., and Lesley R. Foulds. Digraphs: Theory and Techniques. Gordon and Breach, 1980.