Beer, C. J., & Poelsma, D. (1981). Gay workers: Trade unions and the law / Chris Beer.Introduction by Tony Benn MP. Cartoons by Dominic Poelsma. Blackrose.
Lua i Stíl Chicago (17ú heag.)Beer, Chris; Jeffrey, agus Domonic Poelsma. Gay Workers: Trade Unions and the Law / Chris Beer.Introduction by Tony Benn MP. Cartoons by Dominic Poelsma. London: Blackrose, 1981.
Lua MLA (8ú heag.)Beer, Chris; Jeffrey, agus Domonic Poelsma. Gay Workers: Trade Unions and the Law / Chris Beer.Introduction by Tony Benn MP. Cartoons by Dominic Poelsma. Blackrose, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.