HARDING, H. (1969). Introduction To Foremanship H.a. Harding. Macdonald & Evans Ltd.
Lua i Stíl Chicago (17ú heag.)HARDING, H.A. Introduction To Foremanship H.a. Harding. Macdonald & Evans Ltd, 1969.
Lua MLA (8ú heag.)HARDING, H.A. Introduction To Foremanship H.a. Harding. Macdonald & Evans Ltd, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.