Lua APA (7ú heag.)

Berkson, B. (1989). Ambassador of Light: John Button played off the changing forms of nature against the city's bracing order. Art in America.

Lua i Stíl Chicago (17ú heag.)

Berkson, Bill. "Ambassador of Light: John Button Played off the Changing Forms of Nature Against the City's Bracing Order." Art in America 1989.

Lua MLA (8ú heag.)

Berkson, Bill. "Ambassador of Light: John Button Played off the Changing Forms of Nature Against the City's Bracing Order." Art in America, 1989.

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