Okaia flat, Otago Peninsula : Botanical values and grazingJournal Paper
Johnson, P.N., 1993, Conservation Advisory Science Notes. Expand
Johnson, P.N., 1993, Conservation Advisory Science Notes. Expand
Johnson, P.N., 1993. Expand
Johnson, P.N., 1989, Botany Division, DSIR. Expand
Johnson, P.N., 1977, DSIR Botany Division Report. Expand
Lee, W.G.; Allen, R.B.; Johnson, P.N., 1986, New Zealand Journal of Botany. Expand
Cameron, E.K.; de Lange, P.J.; Given, D.R.; Johnson, P.N.; Ogle, C.C., 1995, New Zealand Botanical Society Newsletter. Expand
de Lange, P.J.; Heenan, P.B.; Given, D.R.; Norton, D.A.; Ogle, C.C.; Johnson, P.N.; Cameron, E.K., 1999, New Zealand Journal of Botany. Expand
de Lange, P.J.; Norton, D.A.; Heenan, P.B.; Courtney, S.P.; Molloy, B.P.J.; Ogle, C.C.; Rance, B.D.; Johnson, P.N.; Hitchmough, R., 2004, New Zealand Journal of Botany. Expand
Johnson, P.N., 1975, New Zealand journal of botany. Expand
Johnson, P.N.; Partridge, T.R., 1999. Expand