Lua APA (7ú heag.)

Serota, N., & Cullinan, N. (2008). Cy Twombly: Cycles and seasons. Tate Publ..

Lua i Stíl Chicago (17ú heag.)

Serota, Nicholas, agus Nicholas Cullinan. Cy Twombly: Cycles and Seasons. London: Tate Publ., 2008.

Lua MLA (8ú heag.)

Serota, Nicholas, agus Nicholas Cullinan. Cy Twombly: Cycles and Seasons. Tate Publ., 2008.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.