Kagan, A. (1987). Trova (2nd ed.). Trova Foundation.
Lua i Stíl Chicago (17ú heag.)Kagan, Andrew. Trova. 2nd ed. St. Louis, Mo: Trova Foundation, 1987.
Lua MLA (9ú heag.)Kagan, Andrew. Trova. 2nd ed. Trova Foundation, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.