PERAY, K. E. (1986). The Rotary Cement Kiln. Edward Arnold.
Lua i Stíl Chicago (17ú heag.)PERAY, Kurt E. The Rotary Cement Kiln. Edward Arnold, 1986.
Lua MLA (8ú heag.)PERAY, Kurt E. The Rotary Cement Kiln. Edward Arnold, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.