References
- Lambert , J. P. , Vartha , E. W. and Harris , A. J. Progress report on ‘Grasslands 4700’ white clover . Proceedings of the New Zealand Grassland Association . Vol. 31 , pp. 135 – 142 .
- Vartha , E. W. and Clifford , P. T. P. 1978 . Growth of new clover cultivars in Canterbury . New Zealand journal of experimental agriculture , 6 : 289 – 292 .