National Workshop on Agricultural Adjustment Problems in Australia University of New England, Makeham, J. P., & Bird, J. G. (1969). Problems of change in Australian agriculture: Papers from the National Workshop on Agricultural Problems in Australia, University of New England, February, 1968. Dept. of University Extension, University of New England.

National Workshop on Agricultural Adjustment Problems in Australia University of New England, J. P. Makeham, and J. G. Bird. Problems of Change in Australian Agriculture: Papers from the National Workshop on Agricultural Problems in Australia, University of New England, February, 1968. [Armidale, N.S.W.]: Dept. of University Extension, University of New England, 1969.

National Workshop on Agricultural Adjustment Problems in Australia University of New England, et al. Problems of Change in Australian Agriculture: Papers from the National Workshop on Agricultural Problems in Australia, University of New England, February, 1968. Dept. of University Extension, University of New England, 1969.