Williamson, I. P. (1983). A modern cadastre for New South Wales. School of Surveying, University of New South Wales.

Williamson, I. P. A Modern Cadastre for New South Wales. Kensington, N.S.W.: School of Surveying, University of New South Wales, 1983.

Williamson, I. P. A Modern Cadastre for New South Wales. School of Surveying, University of New South Wales, 1983.