University of Newcastle (N.S.W.). Board of Environmental Studies, University of Newcastle (N.S.W.). Dept. of Community Programmes, Lake Macquarie (N.S.W.). Council, Bridgman, H. A., Whitehead, J. H., & Kidd, R. W. (1991). Lake Macquarie: An environmental reappraisal : review seminar, 31 July 1991, Belmont, N.S.W. Australia. University of Newcastle, Dept. of Community Programmes.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)University of Newcastle (N.S.W.). Board of Environmental Studies, University of Newcastle (N.S.W.). Dept. of Community Programmes, Lake Macquarie (N.S.W.). Council, Howard A. Bridgman, J. H. Whitehead, و R. W. Kidd. Lake Macquarie: An Environmental Reappraisal : Review Seminar, 31 July 1991, Belmont, N.S.W. Australia. [Newcastle, N.S.W.]: University of Newcastle, Dept. of Community Programmes, 1991.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)University of Newcastle (N.S.W.). Board of Environmental Studies, et al. Lake Macquarie: An Environmental Reappraisal : Review Seminar, 31 July 1991, Belmont, N.S.W. Australia. University of Newcastle, Dept. of Community Programmes, 1991.