Lua APA (7ú heag.)

Concrete Society of Southern Africa. (1971). Concrete. Brooke/Patrick.

Lua i Stíl Chicago (17ú heag.)

Concrete Society of Southern Africa. Concrete. Bedfordview, Africa do Sul: Brooke/Patrick, 1971.

Lua MLA (8ú heag.)

Concrete Society of Southern Africa. Concrete. Brooke/Patrick, 1971.

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