Foster, R. M., & Bouwer, I. Z. (1988). The Foster census: R.M. Foster's census of connected symmetric trivalent graphs. Charles Babbage Research Centre.
Cita Chicago (17th ed.)Foster, Ronald M., i I. Z. Bouwer. The Foster Census: R.M. Foster's Census of Connected Symmetric Trivalent Graphs. Winnipeg, Canada: Charles Babbage Research Centre, 1988.
Cita MLA (8th ed.)Foster, Ronald M., i I. Z. Bouwer. The Foster Census: R.M. Foster's Census of Connected Symmetric Trivalent Graphs. Charles Babbage Research Centre, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.