Lua APA (7ú heag.)
McCallum, I. (2008). Ecological intelligence: Rediscovering ourselves in nature. Fulcrum Pub..
Lua i Stíl Chicago (17ú heag.)
McCallum, Ian. Ecological Intelligence: Rediscovering Ourselves in Nature. Golden, Colo.: Fulcrum Pub., 2008.
Lua MLA (9ú heag.)
McCallum, Ian. Ecological Intelligence: Rediscovering Ourselves in Nature. Fulcrum Pub., 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.