No PDF for this one
The Hawaii Biological Survey lists this publication without a file.
Contribution to the Hawaii Biological Survey
Alien plants on the Northwestern Hawaiian Islands, p
Herbst, D.R. & Wagner, W.L. · 1992
189-224. In: Alien plant invasions in native ecosystems of Hawaii: management and research. University of Hawaii, Honolulu.
Herbst, D.R. & Wagner, W.L. 1992. Alien plants on the Northwestern Hawaiian Islands, p. 189-224. In: Alien plant invasions in native ecosystems of Hawaii: management and research. University of Hawaii, Honolulu.