Gerke, S., & McDiarmid, C. (2001). Graph Imperfection II. Elsevier.
Lua i Stíl Chicago (17ú heag.)Gerke, S., agus C. McDiarmid. Graph Imperfection II. Elsevier, 2001.
Lua MLA (9ú heag.)Gerke, S., agus C. McDiarmid. Graph Imperfection II. Elsevier, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.