Powell, Robert D
VIAF ID: 104442724 ( Personal )
Permalink: http://viaf.org/viaf/104442724
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Works
Title | Sources |
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Diffuse knapweed, Centaurea diffusa : reproductive thresholds, population ecology and responses to the introduction of the buprestid beetle, Sphenoptera jugoslavica | |
Diffuse knapweed, Centaurea diffusa. Robert David Powell. Date (1951- ). Canadian. | |
The host preference biology of the aphid, Dactynotus pieloui |