Cameron, P. J., & Lint, J. H. v. (1980). Graphs, codes, and designs. Cambridge University Press.

Cameron, Peter J., and Jacobus Hendricus van Lint. Graphs, Codes, and Designs. Cambridge ; New York: Cambridge University Press, 1980.

Cameron, Peter J., and Jacobus Hendricus van Lint. Graphs, Codes, and Designs. Cambridge University Press, 1980.