by Healy, W.B, Rankin, P.C, Watts, H.M
Published in New Zealand journal of agricultural research (01.02.1974)

by Hart, P.B.S, West, A.W, Kings, J.A, Watts, H.M, Howe, J.C
Published in Land degradation & development (01.09.1999)

by Widdowson, J.P, Watts, H.M
Published in New Zealand journal of experimental agriculture (1977)

by Widdowson J.P, Watts H.M
Published in New Zealand Journal of Agricultural Research (1976)

by Healy, W.B, Crouchley, G, Gillett, R.L, Rankin, P.C, Watts, H.M
Published in N Z J Agr Res (1972)

by Widdowson, J.P. (Soil Bureau, DSIR, Lower Hutt (New Zealand)), Watts, H.M
Published in New Zealand Journal of Experimental Agriculture (New Zealand) (1977)

by Ross, D.J, Widdowson, J.P, Watts, H.M
Published in New Zealand journal of science (1978)

by Hart, P.B.S, Widdowson, J.P, Watts, H.M, Chu-Chou, M
Published in Australian forest research (1980)

by Laffan, M.D, Smith, S.M, Watts, H.M, Widdowson, J.P, Blakemore, L.C, Kafoa, F.F
Published in Fiji agricultural journal (01.07.1982)

by Ross, D.J, Speir, T.W, Tate, K.R, Cowling, J.C, Watts, H.M
Published in New Zealand journal of science (1984)