Pratt, H. C. (1973). Report on study leave tour April to July 1972: Ninth international conference of International Council on Correspondence Education and visits to various countries. Royal Melbourne Institute of Technology.
Lua i Stíl Chicago (17ú heag.)Pratt, H. C. Report on Study Leave Tour April to July 1972: Ninth International Conference of International Council on Correspondence Education and Visits to Various Countries. Melbourne: Royal Melbourne Institute of Technology, 1973.
Lua MLA (8ú heag.)Pratt, H. C. Report on Study Leave Tour April to July 1972: Ninth International Conference of International Council on Correspondence Education and Visits to Various Countries. Royal Melbourne Institute of Technology, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.