Lua APA (7ú heag.)

Leyland, W. (1986). Hard: Edited by Winston Leyland (1st edition.). G. S..

Lua i Stíl Chicago (17ú heag.)

Leyland, Winston. Hard: Edited by Winston Leyland. 1st edition. San Francisco, Calif.: G. S., 1986.

Lua MLA (8ú heag.)

Leyland, Winston. Hard: Edited by Winston Leyland. 1st edition. G. S., 1986.

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