North Western European Region Symposium University of Newcastle upon Tyne & International Centre for Co-operation in Agricultural Research. (1973). Intensive agriculture and the environment. An Foras Taluntais.
Lua i Stíl Chicago (17ú heag.)North Western European Region Symposium University of Newcastle upon Tyne agus International Centre for Co-operation in Agricultural Research. Intensive Agriculture and the Environment. Dublin: An Foras Taluntais, 1973.
Lua MLA (8ú heag.)North Western European Region Symposium University of Newcastle upon Tyne agus International Centre for Co-operation in Agricultural Research. Intensive Agriculture and the Environment. An Foras Taluntais, 1973.
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