by Cullen, N.A
Published in New Zealand agricultural science (1982)

by Cullen, N.A
Published in New Zeal Grassland Ass Proc (1973)

by Cullen, N.A
Published in Proc Lincoln Coll Farmers Conf (1973)

by Cullen, N.A
Published in N Z J Agr Res (1971)

by Cullen, N.A
Published in N Z J Agr Res (1971)

by Cullen, N.A
Published in New Zeal Grassland Ass Proc (1970)

by Allen, R.B, Cullen, N.A
Published in Proc N Z Grassl Assoc Conf (1975)

by Cullen, N.A, Grigg, J.L
Published in N Z J Agr Res (1971)

by Cullen, N.A, Arnold, G.C
Published in N Z J Agr Res (1971)

by Cullen, N.A, Grigg, J.L
Published in N Z J Agr Res (1971)

by Cullen, N.A, O'Connor, M.B, Rajan, S.S.S
Published in Proceedings - Ruakura Farmers' Conference (1982)

by Allen R.B, McDonald I.R, Cullen N.A
Published in Proceedings of the New Zealand Grassland Association (1976)

by Lowther, W.L, McDonald, I.R, Cullen, N.A
Published in Christchurch Tussock Grassland Mountain Lands Inst Rev (1970)

by Boswell, C.C, Monteath, M.A, Round-Turner, N.L, Lewis, K.H.C, Cullen, N.A
Published in New Zealand journal of experimental agriculture (01.12.1974)