Note:
The John Thomson Agricultural Economics Centre; The Place for Promotion in Expanding the Demand for Agricultural Products by K. O. Campbell; Promotion and Market Research of Rural Products by I. Shannon; Private Extension Services for Australia by C. I. A. Beale; Planning Regional Development by A. M. Kerr; Farms or Forests in the South-West by D. W. G. Treloar and I. G. Morison
