New Zealand Journal of Agriculture
16 September 1957
New Zealand Journal of Agriculture
15 November 1957
New Zealand Journal of Agriculture
15 December 1958
New Zealand Journal of Agriculture
15 October 1959
New Zealand Journal of Agriculture
15 August 1959
New Zealand Journal of Agriculture
15 February 1958
New Zealand Journal of Agriculture
15 April 1960
New Zealand Journal of Agriculture
16 June 1958
New Zealand Journal of Agriculture
15 April 1958
New Zealand Journal of Agriculture
16 November 1959
New Zealand Journal of Agriculture
15 March 1950
New Zealand Journal of Agriculture
16 February 1959
New Zealand Journal of Agriculture
15 July 1959
New Zealand Journal of Agriculture
15 June 1953