Natgamna, S., & Thomas, N. (1972). The left and the crisis. Workers' Fight.
Lua i Stíl Chicago (17ú heag.)Natgamna, S., agus N. Thomas. The Left and the Crisis. London: Workers' Fight, 1972.
Lua MLA (8ú heag.)Natgamna, S., agus N. Thomas. The Left and the Crisis. Workers' Fight, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.