Day, D. G. (1982). Resources development and the non-built physical environment of the Upper Hunter Valley N.S.W. Centre for Resource and Environmental Studies, Australian National University.
Cita Chicago (17th ed.)Day, Diana G. Resources Development and the Non-built Physical Environment of the Upper Hunter Valley N.S.W. [Canberra]: Centre for Resource and Environmental Studies, Australian National University, 1982.
Cita MLA (8th ed.)Day, Diana G. Resources Development and the Non-built Physical Environment of the Upper Hunter Valley N.S.W. Centre for Resource and Environmental Studies, Australian National University, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.