Biography: Hay, David
Links and sources
Bibliography
Hale, A. M. Pioneer nurserymen of New Zealand. Wellington, 1955
Shepherd, R. W. 'Early importations of Pinus radiata to New Zealand and distribution in Canterbury to 1885: implications for the genetic make up of Pinus radiata stocks. Part 1'. Horticulture in New Zealand 1, No 1 (1990): 33--38